MaxPower 2.56kWh Lithium-ion Battery 25.6V (MP 2500-Alpha)

Note: The Alpha take on the 2.56 kWh unit, and it differs from the MP 2500-Pro in ways that matter. It supports 2 units in series where the Pro does not, publishes a peak discharge of 162 A for 1 second, and holds a higher cut-off at 23.2 V against the Pro's 21.6 V - so it reserves more charge. The trade-off is scale: 4 in parallel against the Pro's 15. Bulk charge 28 V, float 27.6 V. Discharge temperature floor is -20°C rather than the Pro's -30°C. 27 kg. MaxPower publish no cycle life on this datasheet - the sheet has no cycle-count row at all. Only the two Ultra models in their range quote one, and they do it to a 60% end-of-life threshold rather than the 70-80% used by most brands here, so even those are not directly comparable. No depth of discharge is stated either, so no usable-energy figure is derived. Ask the dealer for a warranty document before sizing a system on lifetime cost. MaxPower publish a compatibility list covering Solis, Growatt, Sofar, SAJ, ATESS, Must, GoodWe, SMA, Deye, Megarevo, SRNE, Victron, LuxPower and Voltronic.