Nice work! I've been building a few of these packs myself. IMHO look at each cell as "how full is each one with water" (analogy only). I believe that
each cell needs to be full prior to being put in series (charges and final balance is faster with my charger this way). I use a Venom Pro Charger Plus I
purchased from Robot Market Place. I charge each cell individually - Build the pack - Re-charge - Balance Charge. Some people will charge and discharge each
cell (cycle them) a few times first. Also, I use a DB-8 from Chargery to monitor the cells, it will also use the cells own power to level each cell with each other while in stand-alone mode.
LiFePO4 cells apparently is like taking care of a Lead Acid Battery. But look at the LifePO4 Cell as an individual SLA. Never let one get to full or to empty.
How often to BALANCE? A fun pun..... like a women can change her mind.........each cell will have it's own character and by watching each cell you will get to know each cell individually and can treat it accordingly. I believe that there is "No" one rule, just general rules. Apply general rules as it applies.
Quote.... Everyday is a learning experience for me! Peace man!
Tommy L sends.....