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Hello there. I have a problem. I used to use 110 2-volt batteries to power a series of lights that need (you guessed it) 220 Volt to turn on. However I decided to change these batteries with 19 12-volt batteries (228 Volt). My question is : will I be able to charge the new batteries with the system I used to charge the old ones? Or do I need to make any modifications?
I'm sorry if I'm not very clear. You can ask me for more details.
Also if the topic is on a wrong section please let me know and I'll move it.
Thanks
 

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If the battery chemistry is the same, most likely. However, if the internal impedance is much smaller or much higher than what the charger is designed for, it will either think the battery is sulphated and give up, or think there is a short and give up. This is a major possibility when you start stringing a ton of batteries together.

If the chemistry of the battery is not compatible with the charger, it will use a different charging curve which could be catastrophic depending on the type of the battery (LiPo for instance).

Try it, and monitor the temperature of the bank closely while they charge. Might also be good to put a current meter on it to make sure they are being charged as the manufacturer recommends.
 

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