say you have a 12v 3a battery what is the proper charger size, can you use a 12v 5a charger?
1480902
You could, but it would not be good for the battery and might destroy it. As a rule you don't want to charge a lead acid battery with any higher current than it can produce. A fast charge up to the rated current of the battery can be done, but a lower rate of charge than the batteries maximum makes the battery last longer.
1656539
This is the type of battery used in electric scooters and Powerwheels. Just make sure that the 12V AH (amperes/hour) match what you have, this might effect your battery size.
710289
No they are about the size of a roll of dimes, if you need a 3.7v battery AA size you need the 14500. If your device calls for AA batteries though, the standard AA only puts out 1.2-1.5v so a 3.7 battery could ruin it.
1440918
Yes you can charge the 12v 10000 mah because there is a switch to change how much power is going to the battery so yes you can use this charger to charge your battery
1956110
if you have a 12 volt battery that is the right charger.it plugs right into the battery
1113569
You will need a 12V adapter, but MAKE SURE it supplies more than 6 amps... or you will be restricted to charging at less than half of this chargers output range. 1 amp charging a 5700mah battery takes 2 hours!! 5 amps charging the same battery takes 15 minutes... I use my cig lighter and a cord from auto zone to power it... NO ISSUES and I can play all day with three batteries for my traxxas slash at WOT the whole time. I charge one while burn thru the other two. I never have to wait for a battery to get back in the dirt. Hope this helps.
698618
You can try it, but you must bear in mind that if you use a 12v charger on a 6v item you may have more power than you need and you may damage what you're trying to power.
508044
Yes, the 12 cell battery will work as long as it is the correct model for the HP you have and no you will not need a new or different charger. I have done the same, upgraded my system battery from an 8 cell to a 12 and it works fine with the same charger.
2047890
I would not use a 6v charger on a 12 volt battery (assuming you have a 12v battery, or why else would you ask?). The 6v battery tender charger will not even cycle on unless the battery voltage drops below a certain point, well below what you would need in your car.
38460
I went with 12v battery with solar charger. I made my own out of ammo can instead of buying one. Battery stays full and don't have to keep buying batteries. I used a old charger cord off regular 12v recharger. To hook to unit. Works like a champ. Only way to go in my opinion.
1773628
you can put any AA size battery in it, its the mah which makes the difference as to how long the battery will last, obviously you can only put rechargeable batteries in a charger. please note if you have firm ware 1.2 do note upgrade to 1.3 as this will mess up your pictures, and there is no way back once you have upgraded
1619404
Dimensions are irrelevant. All of these batteries have the same dimensions. What is important is the voltage and amps. 12 volts and 10 amps; every battery is the same. Don't go with a different voltage or amperage. If it matches what you have it will work. The previous answer appears to be correct.
1567082
The 12V charger on this unit is minimal, maybe 10 watts, it should say in the specs, but I don't remember. I know I used the 12V plug on my motor home start battery and it barely made a difference on a 600 watt battery. You could use a separate 12V charger as long as it doesn't demand too many watts. Good luck.
1113567
If you don't have a 12V 5A power supply, it's best to just buy the version that comes with the AC adapter included here at Amazon; Combo Special: Tenergy TB6-B Balance Charger for NiMH/NiCD/Li-PO/Li-Fe Battery Packs + Power Supply
2091421
Yes, this battery can accept from 12V to 19V DC power for charging. If you have a solar panel with output voltage 12V ~ 19V, you can use it to recharge this battery. The charge port connector size is 5.5x2.1mm. Best regards.
730385
Refer to your current charger. This unit will work if the your current units provides 19.5V and equal to or less than 4.62A.
879449
Probably could maintain them once they have been fully charged by an adequate sized aH charger. Should they become even a little bit discharged, 4x 12volt (car sized) batteries will take a very long time, if at all, with ANY 2 amp battery charger. (undercharging caused sulfation = bad for battery). So what size charger do you need? Experts recommend 10% of battery (aH) amp hour rating, or in other words, if your battery is rated at 50aH, you would need a 5 amp charger, or, 200 aH battery = 20 aH charger. NOTE: You could get by with a smaller less amp sized charger, (say 5% of aH rating) just add more time, to reach a full charge. Probably could maintain them once they have been fully charged by an adequate sized aH charger. Should they become even a little bit discharged, 4x 12volt (car sized) batteries will take a very long time, if at all, with ANY 2 amp battery charger. (undercharging caused sulfation = bad for battery). So what size charger do you need? Experts recommend 10% of battery (aH) amp hour rating, or in other words, if your battery is rated at 50aH, you would need a 5 amp charger, or, 200 aH battery = 20 aH charger. NOTE: You could get by with a smaller less amp sized charger, (say 5% of aH... » Read More Probably could maintain them once they have been fully charged by an adequate sized aH charger. Should they become even a little bit discharged, 4x 12volt (car sized) batteries will take a very long time, if at all, with ANY 2 amp battery charger. (undercharging caused sulfation = bad for battery). So what size charger do you need? Experts recommend 10% of battery (aH) amp hour rating, or in other words, if your battery is rated at 50aH, you would need a 5 amp charger, or, 200 aH battery = 20 aH charger. NOTE: You could get by with a smaller less amp sized charger, (say 5% of aH rating) just add more time, to reach a full charge. « Show Less