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

Note: Bulk charge 28.8 V, float 27.6 V, cut-off 21.6 V. Standard 50 A working current with 100 A maximum. Parallels to 15 units. 26 kg, wall or ground mounted. Worth comparing against the MP 2500-Alpha, which is the same 2.56 kWh at the same voltage but publishes a peak discharge figure (162 A for 1 s), holds a higher cut-off at 23.2 V, and supports 2 units in series where this Pro model does not - though the Alpha caps at 4 in parallel against this one's 15. 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.