Sverige
A Brit in Sweden
For batteries of the same or similar IR, it’s considered best practice to diagonally connect load tap offs as shown in option A diagram below, but what is the best approach to manage paralleling of batteries with significantly different IR?
I have Lishen 272Ah cells with a spec sheet IR of 0.12mOhm and wish to add Eve 304Ah cells with spec sheet IR of 0.5mOhm, a difference of 4X. From the illuminating posts of @RCinFLA i understand this is because the Eve cells have a thicker electrode design, so I am concerned that in normal parallel connection with the Lishen cells the Eves will share less of the load.
Would alternative B below (having the load connections both connecting to the higher IR battery) offer advantages in keeping these cells closer to the same SOC, or am I way off track?
I have Lishen 272Ah cells with a spec sheet IR of 0.12mOhm and wish to add Eve 304Ah cells with spec sheet IR of 0.5mOhm, a difference of 4X. From the illuminating posts of @RCinFLA i understand this is because the Eve cells have a thicker electrode design, so I am concerned that in normal parallel connection with the Lishen cells the Eves will share less of the load.
Would alternative B below (having the load connections both connecting to the higher IR battery) offer advantages in keeping these cells closer to the same SOC, or am I way off track?