Battery Tender Jr.


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WingAdmin
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Battery Tender Jr.

Postby WingAdmin » Sun Dec 07, 2014 12:47 pm



After all this time, I can't believe I've never written a review on this product.

This is the ubiquitous Battery Tender Jr., manufactured by Deltran. There are quite a few float charger type products out there that bill themselves as "battery tenders" but the actual product name of this is "Battery Tender Jr." - they have other Battery Tender products, including one with higher charging output, and one with more outputs for charging multiple batteries.



But let's first get back to basics: what is a float charger, and why is it needed?

Lead-acid batteries, of the type used in cars and motorcycles, lose a part of their charge over time just sitting when they aren't even connected to something. When left in a bike that has a clock or radio memory circuit in it that constantly draws power even when the bike is off, that loss of charge is even faster.

Lead-acid batteries "like" to remain at full charge at all times. A battery that is kept at full charge will have a much longer service life than a battery that is left sitting with less than a full charge.

I used to go through a lot of batteries - my motorcycle batteries would last between one and two years before they needed replacement. With multiple motorcycles (not to mention other battery powered things like a generator, snow blower, etc.) this gets expensive!

I figured I would put a trickle (float) charger on my main GL1100 battery to help keep it fully charged. I bought a cheap float charger from Harbor Freight, for under $10. I hooked it up to the battery and left it sitting overnight. Two days later, to my utter surprise, the battery was dead! The cheap float charger overcharged the battery, destroying it! I could charge it fully, but its plates were sulfated, and it would no longer produce enough current to start the bike. This was an expensive lesson - and taught me about the false economy of Harbor Freight float chargers!

So it was with a bit of trepidation that I tried the Battery Tender Jr. - I didn't really want to throw another $100 down the drain for another new battery. The difference with the Battery Tender products is that they are intelligent: they have computers inside that analyze the state of charge of the battery to which they are connected, and alter their output to adjust: Initialization, Bulk Charge Mode, Absorption Mode, Float Mode).

The result: I'm still using that battery five years later, and it still works like it is brand new. I was so impressed that I bought more: I now own five Battery Tender Jr.'s, and they are connected to all of my bikes and devices, 24/7. Every time I park my bike, I plug it in. I have not had a single battery go bad in the five years since I have started using Battery Tenders - and every battery still performs like it is brand new.

The Battery Tender Jr. comes with a 12 foot cord and a plug. This plug then attaches to one of two included connectors: a set of alligator clips, for temporary attachment to a battery, or a set of ring terminals, for permanent attachment. I use the ring terminals, then feed the other end of the connector up through the bike somewhere where it can be hidden. In my wife's PC800, the connector hides behind the right passenger footpeg:

Connector mounted behind PC800 passenger footpeg
Connector mounted behind PC800 passenger footpeg


In my GL1500, it hides in the left passenger cubby:

Connector mounted in GL1500 cubby
Connector mounted in GL1500 cubby


When I park the bike, I simply flip open the cubby, plug in the Battery Tender, and I know the battery is protected and maintained.

The Battery Tender is designed to be pretty much indestructible. You can hook it up backwards to the battery, and nothing will happen. You can start the bike with it connected, no problem, it simply turns itself off. It's spark proof, and has an indicator light that flashes and changes color to tell you the state of your battery, and what it is doing to manage it. It has a five year warranty, which I have not had to use.

The Battery Tender works great on standard flooded wet-cell lead-acid batteries, as well as AGM (absorption glass mat) batteries. If you have a gel-cell battery, there is a different version that has programming to work properly with them.

And you can now get accessories that plug into the Battery Tender vehicle-side connector when the Battery Tender is not connected. These provide USB charging outputs and 12 volt cigarette lighter-style power ports to allow you to plug your electronic devices into your vehicle. See more about these accessories here: Battery Tender USB Charger and 12 volt Socket

Overall, this is one of my favorite products, they work amazingly well, keep your batteries in top shape, and cost less than a quarter of the cost of a single new battery. I can't recommend them highly enough.



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urbanmadness
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Re: Battery Tender Jr.

Postby urbanmadness » Mon Feb 16, 2015 6:29 pm

Here, here....

I have them on my bike and my 4x4. Even the Jr works on the 4x4 just fine (it's a '91 GMC Jimmy).

Awesome product. When I was repairing scooters for people, the first thing I'd do when they pulled into my shop was put them on the Battery tender. I had one just for customer bikes. When someone bought a new scooter, I'd tell them, "Get a Battery Tender, it will save you money".

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Re: Battery Tender Jr.

Postby suvcw04 » Mon Feb 16, 2015 8:23 pm

There is a 2005 Wing trike, a 2010 Yamaha Majesty, a 2010 Pontiac Vibe and a 2000 Honda Civic in my garage. Each is plugged in to its own Battery Tender Jr. The gentle green glow is reassuring, and all 4 will start.

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Re: Battery Tender Jr.

Postby harvey01 » Mon Feb 16, 2015 10:52 pm

I use a Battery Tender Plus in the garage switching it between the motorcycles. I carry a Battery Tender, JR. on the Wing when I travel in case a battery needs charging.
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Re: Battery Tender Jr.

Postby thrasherg » Tue Feb 17, 2015 12:54 pm

I can only say that I have 16 motorcycles, 12 have batteries and I own 13 Battery Tenders!! Never had a battery fail!! Love these things..

Gary

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Re: Battery Tender Jr.

Postby virgilmobile » Tue Feb 17, 2015 7:58 pm

So far,I'm pleased with mine...I did have a WM charger that boiled my battery dry.All but one cell...it still was full...curious..
I even refilled it and tried the battery tender jr. on it...
It showed red for about 4 hours then turned green..much too fast of a charge..The battery had just enough power to turn on the lights...It was pu pu...

Sense I had to buy a new battery,......I decided to experiment....Ya'll know me.I can't leave it alone...
Very controlled conditions mind you...

I discharged the battery with a halogen lamp...flat dead....with that same lamp to control the current..I reversed charged the battery....About 1 amp current...protected area for 24 hours....
It actually took some charge....measured about - 8 volts but I noticed that the negative plate pack(the one that was still full) was cold and did not bubble...It was obvious that it was gonna be the problem area.
The positive side of the battery cell held around 88 degrees and the bad cell(at the negative post) was near 68 degrees.
I discharged the battery again flat..6 hours...charged it normal polarity, 1 amp for 24 hours.....
The negative plate pack was getting better...a bit of bubbles but still colder that the others....
One more time....I drained the acid...flushed the battery....filled it with distilled water...reversed charged it for the second time...24 hours at 1 amp....discharged it....replaced the water with the original acid and a 1 amp charge for 24 hours..
This time the bubbling was just about equal and each cell temp varied by only a few degrees.


Well it actually cranked the bike right up....38* too....
I plugged it into the battery tender jr.... lo and behold....4 days later it finally turned green.
Yes it actually took 4 days to charge the battery.

Yahoo...I was able to resurrect a ruined WM battery by a WM charger with an enormous amount of risky experimenting ....reverse charging...hoping nothing would catch on fire or explode....I GOT LUCKY...I think....
Well ....I did monitor the cell temperature and current.

Was it worth it...? For a $50 WM lead acid battery...??? Only for my own curiosity. ....I really don't suggest this...

By the way..don't reverse charge a LiPo battery....well let's just say.... flash fire....Been there..done that.

All of this just to say... The battery tender is the right product for this need IF you have a good battery to start with...It will maintain it just fine....It will not restore a sulfated or otherwise ruined battery.

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Re: Battery Tender Jr.

Postby Mag » Tue Feb 17, 2015 11:23 pm

thrasherg wrote:I can only say that I have 16 motorcycles, 12 have batteries and I own 13 Battery Tenders!! Never had a battery fail!! Love these things..

Gary


16? DAMN! And you ride each one each day twice a month about ..... NICE!! I have no room for 16, but I would have a good time with that.

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Re: Battery Tender Jr.

Postby thrasherg » Wed Feb 18, 2015 10:59 pm

Mag wrote:
thrasherg wrote:I can only say that I have 16 motorcycles, 12 have batteries and I own 13 Battery Tenders!! Never had a battery fail!! Love these things..

Gary


16? DAMN! And you ride each one each day twice a month about ..... NICE!! I have no room for 16, but I would have a good time with that.


Most of them are dirt bikes and I am counting my kids, wife and my bikes, so cheating a little, but still 16 bikes!! :D

Gary

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Re: Battery Tender Jr.

Postby barnaclebill » Wed Apr 01, 2015 4:17 am

First of all, I live in Thailand. We do not have the vast selection of equipment and accessories that the western world has! Virtually what you see for sale is a "one-off" purchase with little or no support, or follow up sale. I bought my Deltran Battery Tender - Waterproof 800 - last year, and although I haven't been able to give it a good test, it is certainly better than any other charger that I have had. However, I have two criticisms.

First, the extension cords are relatively short. I use the ringed version to connect to the battery and earth point, led under the seat, with the double pole Deltran connector poking out adjacent to the fuse box, just above the left rear foot plate. That's as far as it will reach. This is not really suitable as it is prone to water splash from the rear wheel. (I ride a trike). I would like to locate the Deltran connector in the front left cubby. Can I lead a wire (say 18SWG) from the positive battery pole, along with a negative wire from a suitable earth point, to the front cubby, to connect with the Deltran extension lead? Or can I really just extend the Deltran extension cord (with a suitable 18SWG 2-wire), without fear of blowing up either, or both, the charger and my trike?

Second, the Cautionary Notes stat "NEVER set the charger above the battery." Now, does this mean DIRECTLY above the battery, or above the battery, in any location? If the latter, then it is almost implying that the charger will be at ground level!

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Re: Battery Tender Jr.

Postby WingAdmin » Wed Apr 01, 2015 11:26 am

barnaclebill wrote:First of all, I live in Thailand. We do not have the vast selection of equipment and accessories that the western world has! Virtually what you see for sale is a "one-off" purchase with little or no support, or follow up sale. I bought my Deltran Battery Tender - Waterproof 800 - last year, and although I haven't been able to give it a good test, it is certainly better than any other charger that I have had. However, I have two criticisms.

First, the extension cords are relatively short. I use the ringed version to connect to the battery and earth point, led under the seat, with the double pole Deltran connector poking out adjacent to the fuse box, just above the left rear foot plate. That's as far as it will reach. This is not really suitable as it is prone to water splash from the rear wheel. (I ride a trike). I would like to locate the Deltran connector in the front left cubby. Can I lead a wire (say 18SWG) from the positive battery pole, along with a negative wire from a suitable earth point, to the front cubby, to connect with the Deltran extension lead? Or can I really just extend the Deltran extension cord (with a suitable 18SWG 2-wire), without fear of blowing up either, or both, the charger and my trike?

Second, the Cautionary Notes stat "NEVER set the charger above the battery." Now, does this mean DIRECTLY above the battery, or above the battery, in any location? If the latter, then it is almost implying that the charger will be at ground level!


You could easily extend the wire (18 gauge would be fine, your charger puts out a maximum of 0.8 amps), so that's no problem.

They are talking about not putting the charger directly above the battery, to avoid explosive hydrogen gas (which is vented from the battery when charging) being ignited by a stray spark from the charger, not that that would ever happen - I'm sure their lawyers added that warning.

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Re: Battery Tender Jr.

Postby barnaclebill » Sun Oct 25, 2015 10:35 pm

Hi! Remember me? Bought the Deltran 800 12v Automatic Tender and we discussed its connectivity and placement earlier this year. Has worked great for 18 months now. Problem has arisen! It doesnt work! Connected up this morning, nothing. Checked power supply, socket and connector (Plug), no green/orange light, no charging power at output. Without cutting out the wiring cannot prover continuity of cable - any suggestions - apart from buying another charger?

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Re: Battery Tender Jr.

Postby WingAdmin » Mon Oct 26, 2015 9:05 am

barnaclebill wrote:Hi! Remember me? Bought the Deltran 800 12v Automatic Tender and we discussed its connectivity and placement earlier this year. Has worked great for 18 months now. Problem has arisen! It doesnt work! Connected up this morning, nothing. Checked power supply, socket and connector (Plug), no green/orange light, no charging power at output. Without cutting out the wiring cannot prover continuity of cable - any suggestions - apart from buying another charger?


If the light is not coming on when it's just plugged in, then something has failed. It's still under warranty (Deltran has a very generous warranty period for its products). Contact them and get it replaced: http://www.batterytender.com/Warranty-Information/

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Re: Battery Tender Jr.

Postby barnaclebill » Mon Oct 26, 2015 10:24 am

As much as I appreciate your response - and advice - I regret it is not the answer! As pointed out in my original post, this is Thailand, and to return the unit to Deltran is impractical, costs, shipping, etc. In addition, its return would not only incur shipping costs, but import duties -again, which can be in excess of 100 percent! I revisited the original place of purchase - they do not stock the unit - it was a one-off purchase(!) so no replacement available in country! Ho hum! Will have to revert to my (very) old battery charger! Thanks for the response, anyway.

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Re: Battery Tender Jr.

Postby WingAdmin » Mon Oct 26, 2015 10:47 am

barnaclebill wrote:As much as I appreciate your response - and advice - I regret it is not the answer! As pointed out in my original post, this is Thailand, and to return the unit to Deltran is impractical, costs, shipping, etc. In addition, its return would not only incur shipping costs, but import duties -again, which can be in excess of 100 percent! I revisited the original place of purchase - they do not stock the unit - it was a one-off purchase(!) so no replacement available in country! Ho hum! Will have to revert to my (very) old battery charger! Thanks for the response, anyway.


Well then...you've got nothing to lose by taking it apart. :) Have a look see inside, see if there may be a circuit-mounted fuse or something of that sort inside.

Oh...wait, never mind. I just looked the unit up online, and the interior is encapsulated in resin to make it waterproof. That makes any disassembly pointless, you can't get to the circuit board. :(

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Re: Battery Tender Jr.

Postby barnaclebill » Mon Oct 26, 2015 11:02 pm

Once again, my thanks. You're right, the unit is encapsulated in resin!

BUT!! I reread the manual and it says in plain words that if the battery is below a "rechargeable" state the unit will not commence charging. I quote: "If you try to charge a dead battery having a voltage below 3 Volts, the 'charger' will not start to charge because an internal safety circuit prevents the battery charger from generating any DC output voltage." unquote.

My battery (practically new Yuasa YTX 24 HJL-BS) had been allowed to totally discharge, and thus was identified by the charger as "below par"!

I charged the battery using my old, conventional charger successfully (Glad that I kept it after buying the Deltran!). Rode the trike for a while and then connected up to the Deltran - again, successfully.

Lessons learnt! Read the manual more than once, and dont panic! Thanks again.

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Re: Battery Tender Jr.

Postby ImpactBattery » Thu Dec 24, 2015 9:18 am

Motorcycle Batteries and chargers is something I know a lot about. For full disclosure I am an owner of ImpactBattery.com and business member of the GWRRA and advertise in Wing World. Many of you may actually already know who I am from my various writings or because you have already purchased something battery related from our company.

Anyways, I was reading the comments and reviews of the Battery Tender Jr. here and was intrigued by the overwhelming support for the charger and also wanted to add a thought to barnaclebill's post regarding low voltage.

First if the battery is abnormally drained and your smart charger, not just Battery Tender's, will not charge the battery, try connecting the battery in parallel with a good battery and then connect the charger to the terminals of the good battery. Let them stay connected for 12+ hours and the charger should recognize the voltage of the good battery and charge both batteries up together. There is no need to risk using a "dumb" charger.

Second, I recently wrote an article that shared some insights on the Battery Tender Jr. and how it seems to perform in the real world. This somewhat subjective, yet quantitative summary from the last 5-6 years of watching and listening, seems to be in stark contrast to what users here have indicated. I'd like to get more feedback if I could...the blog article can be found on our website. Follow this Battery Tender Jr. link to access it.

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Re: Battery Tender Jr.

Postby harvey01 » Thu Dec 24, 2015 7:11 pm

Impactbattery, you posted:
Second, I recently wrote an article that shared some insights on the Battery Tender Jr. and how it seems to perform in the real world. This somewhat subjective, yet quantitative summary from the last 5-6 years of watching and listening, seems to be in stark contrast to what users here have indicated. I'd like to get more feedback if I could...the blog article can be found on our website. Follow this Battery Tender Jr. link to access it.

Read more: viewtopic.php?t=24954#ixzz3vHonoXvS

Perhaps the big difference is caused by real hands on experience versus 5-6 years of watching. Theory is wonderful but what really works usually stands out and that is the case with Deltran's Battery Tenders. The simple fact is they work, batteries last, and they don't seem to create problems. I have tried several different manufacturers and if the unit did not ruin the battery in the first year then it managed to die itself. Except the Battery Tender. I did have to replace a unit about 6 years ago when I dropped one.
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Re: Battery Tender Jr.

Postby ImpactBattery » Mon Dec 28, 2015 11:31 am

Harvey01,
Perhaps you failed to FULLY read the Impact Battery blog article...this is from 5-6 years of data; some of which was from actual side-by-side-head-to-head testing, real world experiences we were directly or indirectly involved with, other third party outfits, real world experiences shared by customers and empirical data from customer warranty surveys. The theory aspect is simply in relation to the warranty data and experiences shared as we have no way of knowing if the users truly used the charger as often as stated or if they are using the term Battery Tender generically.

You are right in saying "what really works stands out" but when it comes to the Battery Tender Jr (not the Battery Tender Plus) we cannot agree. Our 5+ years of data and their own specifications validate our results. The Junior does not exceed 14.4V and is incapable of delivering a full charge. Time and time again we hear the same thing from customers that purchased the Tender Junior and more times than not it is not good news.

In fact, I just spoke with Roy, a customer of ours from a couple weeks ago, that has used Battery Tender religiously. About 2-3 weeks ago, he purchased a new Quad battery and the XC100-P desulfating charger by PulseTech after reading our various writings on sulfation. When he called back today to get another device for his 48V golf cart, he mentioned that he used the XC100 on his Harley battery that had the Battery Tender plugged in via the cigarette socket 100% of the time when not riding. He said the battery was older and seemed to be losing life and would not keep a charge very long if he forgot to plug the bike in after riding. Well after one weekend of using the PulseTech he said "the battery fires off like a brand new battery" and it holds its charge without needing to keep the Tender attached. He then mentioned that for kicks he used the charger on his old quad battery which the Tender could not even charge. That battery now seems to have been revived and is working again, and almost regrets getting a new battery. (I encouraged Roy to share his story on the blog, so I hope he gets a chance to do so to validate I am not making this stuff up).

These are the stories we hear over and over again from customer using products in the real world. From the little bit of testing we did (and others did) and these real world stories it is hard not to come to any other conclusion, the Tender Junior is not that great and leaves you wanting. Roy thought he was doing everything right. Turns out the Tender Junior was keeping his battery in a perpetual state of life support rather than fixing the underlying issue of sulfation and releasing his battery from the dependency he had come to believe was vital.

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Re: Battery Tender Jr.

Postby suvcw04 » Mon Dec 28, 2015 12:00 pm

I have FOUR Battery Tender Jrs. They were purchased at a time when the four of them cost LESS than 1 Pulse Tech. That means they have been doing their jobs, with no problems, for a long time. Now, I am being told to spend $400 to replace tried and proven with with an unknown. No thank you PT Barnum.

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Re: Battery Tender Jr.

Postby harvey01 » Mon Dec 28, 2015 1:20 pm

ImpactBattery,

I respect that you are trying to sell a product, whereas I am just a consumer. Unfortunately for you I have been using the Deltran Battery Tender or Plus or Jr for at least twice your 5-6 years with nothing but good results. I have been on motorcycle forums also for more than 5-6 years and have heard nothing but good reports. I have been riding since 1966 and have never had a fellow rider complain about a Deltran Battery Tender. I had never even heard about your product until you popped up on a couple of websites.

I will stick to a known product. And if I were to make a change I would look first at the Yuasa products/chargers.
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Re: Battery Tender Jr.

Postby ImpactBattery » Mon Dec 28, 2015 2:17 pm

suvcw04 wrote:I have FOUR Battery Tender Jrs. They were purchased at a time when the four of them cost LESS than 1 Pulse Tech. That means they have been doing their jobs, with no problems, for a long time. Now, I am being told to spend $400 to replace tried and proven with with an unknown. No thank you PT Barnum.
No one is telling you to buy anything. (But if you did buy a Pulsetech you would only need one to replace all four and as the blog points out a CM1A costs about the same as the Jr and is a better comparison).

I am simply stepping into the hornets nest and sharing info on items that, to soften it up, appear to perform better. I've been around the block a few times and used to sell the heck out of Deltran as an employee of another battery company. I simply knew them as the pioneer of the smart charger and that they had the best brand recognition. But after starting my own company I began to pay attention to details and started noticing a trend. All I can do is share what I have noticed since paying attention. Now after hundreds of shared user experiences, I decided to write about it.

Industry insiders told me not to share this info unless I wanted to get sued by Deltran. Apparently they are very litigious, but I figured since I am not defaming the brand and simply sharing user experience and head-to-head testing all should be fine and would create a useful dialogue. I am willing to bet the Deltran faithful will come to their defense and that the vast majority will have never used anything else. How can you compare something without trying something else? We have the wonderful opportunity at Impact Battery to continually test new products and compare them in different situations. Experience is king! And frankly I enjoy setting up little head to head tests of batteries and chargers; its how we learn what works and does not work. The alternative is to be like everyone else and serve the almighty dollar vs. our customers.

In short buy what you want. Discard credible information or rely on opinion of a couple users. I encourage people to share their opinions. If someone wants a certain test completed ask and we would be happy to fit it into the schedule.

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Re: Battery Tender Jr.

Postby suvcw04 » Mon Dec 28, 2015 4:23 pm

ImpactBattery wrote "In short buy what you want. Discard credible information or rely on opinion of a couple users."

Could that be a couple HUNDRED users, or a couple THOUSAND users, or a couple HUNDRED THOUSAND users?
Volkswagon had "credible information" about their TDI diesels, too.

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Re: Battery Tender Jr.

Postby ram11397 » Mon Dec 28, 2015 6:15 pm

Not sure about those two items i use different brand altogether mind works great, but to the person or persons that say i use yada yada and nothing else i just have this statement i found :)

“There is a principle which is a bar against all informa -
tion, which is proof against all arguments and which can-
not fail to keep a man in everlasting ignorance—
that principle is contempt prior to investigation.”
—Herbert Spencer
Rick
1982 GL 1100 Aspencade

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Re: Battery Tender Jr.

Postby redbug » Mon Dec 28, 2015 6:30 pm

As this topic had opened up, a new battery tender plus agm graced my shop. A up grade was needed since I have two agm's ,one in the vehicle and one on the wing wondering if there is a difference. There is.
On return from riding I plug the charger in and forget it. Every time the red light comes on for a minute or two and then goes to the yellow and in about five or so minutes to green on the junior. First time on the agm it stayed yellow for a hour while in the shop and I left and came back the next morning and green had arrive. The Odyssey PC-680 is about six years old and really was kinda sluggish and didn't have the spin like it use to (one year old starter) and I had been checking static voltages frequently. The agm has four stages of charge against the three stage as in a junior. So there is a difference to me on the spin part for sure. Even the Optima Red Top battery took forever to charge the first time on the agm .Now all is good.
I was trained to charge a new battery before it went into service to achieve full voltage from the git go because it will never receive full charge again till you put it on a charger.
Remember the old days of topping up a acid battery and getting jus a drop on your clothing, or charging up and the smell?
To me there is a difference in the jr and the agm plus ,good investment.
Oh, on the Volkswagen diesel deal, there not in trouble anymore, but it is pretty neat they have tech savy to know when a car is being smog analyzed it can go to safe mode automatically.
I still have a battery tender smart charger that I purchased before they came out with the jr. and it still is in service today.
" Ridin on Tulsa Time "

ImpactBattery
Posts: 17
Joined: Thu Dec 24, 2015 8:55 am
Location: Irvine, KY
Motorcycle: Wife Won't Let Me Ride Until The Kids Are Grown (She's an ER Nurse)

Re: Battery Tender Jr.

Postby ImpactBattery » Mon Dec 28, 2015 6:48 pm

suvcw04 wrote:ImpactBattery wrote "In short buy what you want. Discard credible information or rely on opinion of a couple users."

Could that be a couple HUNDRED users, or a couple THOUSAND users, or a couple HUNDRED THOUSAND users?
Volkswagon had "credible information" about their TDI diesels, too.


Yikes, not to keen about being lumped into a crowd that deliberately deceived people. Really not sure where you are trying to take that statement or what the agenda is...




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