Can it renew older batteries and give them more life?
852538
It totally depends upon the condition of the batteries. Wet cell batteries have a natural life span, andcan and will accept a finite number of charges over their lives. If your batteries are old and have notbeen maintained, a new battery charger may bring them up to a charge level that is less than that of when they were new. The fall off in maximum charge will be the fault of the battery condition, not ofthe charger. I really recommend this charger as I think it's about the highest quality for the money.
852539
To some extent, it does a more complete job of charging without overcharging. I found out that I wasn't charging my deep cycle battery enough with the car charger I was using - this critter worked on that battery for about 36 hours before saying it was charged, and the battery worked much better afterwards. At the very least it can eliminate battery problems caused by operator error. ;)If you're considering getting one of these, just get it! It saves a lot of time and reduces the number of things you have to worry about on the boat.
852540
Batteries don't really work that way. The charger will fill the batteries to whatever level the batteries are capable of holding. The charger will not bring batteries back from the dead, as dead batteries will not hold a charge very well or long.
852541
If the battery is serviceable (go to a NAPA store and let them test it for free), this charger will extend the life significantly. It removes some sulfation from plates but cannot remove sediment at the bottom of the cell if such is present. A test will show bad cells in the battery which is typically caused by sediment.
339972
Absolutely! I use these, among other things, to replace the 900 mAh batteries that come in some of the solar lights.
1985927
Yes, but more or bigger ones would be better. And make sure you have replacement batteries.
2197627
Wellll, Yes it can, but you don't want to do it.Google and instructables dot com would be your friends here. At a high level the steps are:1. Identify + and - connections on battery.2. Break open battery case (preferably a dead one).3. Remove batteries.4. Add wires to battery contacts.5. Connect wire to a 12 volt DC power supply with 'enough' amps, or to your car battery (better watch that polarity!)But given the fact that a new battery is around 35 bucks - it aint worth doing.
364015
The new battery and back are MUCH larger than the original battery and back. I doubt it will work.
254449
Yes. Just make sure you keep your existing battery connectors and tape these two cells together in the same fashion the original is.
989586
James, really don't know much about re-chargable batteries, so I am sorry I can't help! Other reviewers may have the answers you're looking for.
1019573
Yes ,get a new battery,they don't have long shelf life Good luck and HAPPY NEW YEAR
1623102
Yes, any battery can go dead eventually when older. This one has not gone dead as of today and the system will alert you if the battery cannot be charged.
1641935
Hello, I don't know, your best bet (probably) would be to email them and ask... seems there a jillion batteries out there.
1017293
Yes you can. That battery works so much better than the original. Longer run time and faster.
1579382
These batteries can be recharged repeatedly whether they are partially or completely discharged. Perhaps when they have been used repeatedly over a long period of time, it would then be useful to give them a complete discharge and refresh.
1171911
No. The battery lasts very long, about a year. After that you can just change it by the new one.
565357
I've got no idea. I had my old batteries rebuilt and they're lasting longer. Maybe that'll work for you.
131490
Yes, but only if you have decent electronics repair skills. The battery is soldered in the device. Please see the review by F. Drebin.
1413279
Actually you can, Battery Plus sells the battery, take your time with the install
1641934
Hello, I don't know, your best bet (probably) would be to email them and ask...seems there a jillion batteries out there.