Will this save a battery that is not holding charge? I have a 12v battery that can only be charged to 10.5v. Thanks
1937313
No, it will be a waste of your money. I had used a different brand previously and it worked great. I have tried this on several batteries and it does not work!
1937314
Sounds like you have a bad cell and this will not help. Use a hydrometer and check your specific gravity across all cells.
1937315
it did work on my dead battery for a few days, but I had to buy another battery.
1937316
I think this the same stuff as the old v6 I used to use an it helps by removing the corrosive buildup between plates ( I think) thus allowing the battery to recharge an hold a charge better an longer. I used it on flat batteries, put it in, let it set for a while an then, had charge in battery, it also makes the batteries I have used it on when were weak to last longer an as to how much v in them, do not know, just knew they got me started in tractor an truck....
1300906
Had mine on a 12 Volt ATV battery for 4 months . Does not seem to be any problem. It charges so slowly I don't think it could hurt the battery. But does get the job done. Hope this helps.
317968
How do I find out what is wrong with this battery? I did not know that you aren't supposed to use the regular battery tenders on these kind of batteries and I left it charging for a couple of days and now it is beyond dead. So if the tender didn't kill it, apparently (also read just now in the questions section) if it drops below 8% charge it is no longer anything but a paperweight? So tell me now if I should just go out and buy a new battery after wasting my money on the 1 ride I got out of this battery.
1704351
I advise u not to charge it with a different charger b'couse it may cause defect on it . The battery can support a certain A or volts but it was designed to measure when it's full charged or empty , what i'm trying to say it's u can short the batery life if u use the wrong charger .
720190
I don't think it will. It's meant to keep an already good (or charged) motorcycle/lawnmower/scooter battery from loosing power during the winter or non use months. Meant to trickle a charge to the battery. Sorry this is not a true answer but based on my experience it's all I can share.
511884
A voltmeter with the plus lead on red and the minus on black or blue will give you the voltage. If you run the battery down it may not charge right away, the charger will trip and not apply a charge. I have found that waiting and retrying will often revive the battery. It will read below 4 volts but will gradually recover.
1014485
If by "minimum charge" you mean you should not use it below 3 volts per cell (total 9volts) then yes. Dropping it below that will shorten the lifespan of the battery. You , of course, could run it completely dead but that would be bad for it. It is a three cell battery which actually charges to 12.6 volts total on most chargers and in use you don't normally go below 3.5v/cell or 10.5 volts total. Was this helpful?
1730399
battery don't last 10yrs.... But if the battery was 5yrs and newer and if you discharged the battery completely to 0 volts, yes it will bring the battery back to life 100%
906306
It could be a bad battery. If it is a bad battery, you can call customer support, and they will send you a new one. They were very pleasant when I spoke with them about a battery issue not holding a charge. At the time, the customer service person told me that new batteries should be charged for at least 24 hours in order to keep a full charge. He also told me if the battery didn't work, that they would send me a new one.
1900132
If you gave it time to fully charge, there shouldn't be a problem. I've had no problems with mine holding a charge. Contact Amazon. If it's faulty, they'll replace it quickly.
2028840
The battery fits perfectly, however, it is not holding it's charge. What should I do?
682100
It really depends on how old the charger (actually the battery inside) is. I got mine 2 years ago, and it would no longer hold anything higher than 11 volts even after being plugged in for 3 days. So I went ahead and bought a replacement battery from Ebay (~$27), and now keeps it charged every 30 days. I leave mine in the vehicle, so I can use it when I need it the most.
20275
Could be, if the battery was allowed to sit with no charge it could have lost its polarity. Check charger with a meter.
2158788
my battery is a Slider 12v that I use on it But, charger keeps Knocking off before it is finished charging. You have to keep turning it on and off for it to charge again.
1171268
charge it to be safe,when you plug the charge in it will automatically start charging at a lower number and work its way up,you can tell how much of a charge it needs by how long it takes to get back to 100%,you cant over charge it so this wont hurt it,once your sure its 100% only charge it when it gets low,if its fully charged your just wasting electricity!!!!!
2158889
If your battery is completely dead,charge it 6 hours.I found this to be adaquate.Problem is at full charge battery will only last 20-30 minutes.
451224
i have 2 batterys in my boat 1 keeps a charge pretty good other dosent it was almost dead and charged it up will take a charge but still dosent hold it this charger dose charge it up and maintains it