Why Shouldn T You Mix Old And New Batteries. The performance of a battery-operated product is limited by the weakest of all the batteries in the device. I am considering an installation with 1 battery module from Pylontech or BYD around 25 kWh with the possibility of upgrading the system within a few years with more modules.
So youve obeyed the warnings up to this point but now you need three batteries and you only have two fresh ones. If you put 1 old battery in parallel with 1 new battery of the same voltage it will work fine. The usual result is that it leaks and that can destroy the device it leaks into.
Why shouldnt you mix old batteries with new ones.
A brand new set of identical batteries will show some cell to cell. 3035K Likes 56K Comments. But your old battery isnt going to ruin the new ones. Doing so will reduce overall performance and may also cause battery leakage or rupture.
