How to parallel packs without creating an imbalance.
Same-model rule and commissioning
Same model, same firmware, same age — then bring them up one at a time.
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Fusing, cable lengths and monitoring
Equal cable lengths and a fuse per string keep the load shared evenly.
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LiFePO4 questions
Short answers to the ones that come up most.
What makes LiFePO4 different?
Lower energy density than NMC, far better thermal stability and cycle life.
How long does a pack last?
4,000–6,000 cycles at 80% DOD — eight to ten years of daily cycling.
Can it be charged in the cold?
Not below 0°C without a heater; discharge in the cold is fine.
Does it need maintenance?
No watering, no equalising — terminals, ventilation and the BMS log.
Is it safe?
The safest lithium chemistry in wide use: no cobalt, stable at temperatures where NMC vents.
