Knox 5.12kWh Lithium-ion Battery 51.2V (Powerwall 7.1)

Note: The only weather-rated battery Knox list here. IP65 - dust-tight and protected against water jets - where every other Powerwall in this range is IP20 indoor-only, which is what the roughly Rs 70,000 premium over the Powerwall 6.11 buys. It is also the lightest of the 51.2 V units at 43 kg in a 140 mm-deep case, and parallels to 16. Two things to know before buying. First, charging is limited to 50 A where the IP20 models take 100 A - so a full charge takes about twice as long, even though discharge is still 100 A. Second, Knox publish no cycle life for this model. Every other battery in their range is quoted at >6000 cycles at 80% DoD; this datasheet simply omits it, so the field is left blank here rather than assumed. Also note the sheet supplied is a compiled specification rather than a Knox-issued datasheet - its own footer says the figures are "based solely on the product information supplied" - and it is 61 KB against 2.4-6.3 MB for the others. Retailers sell this unit as the Powerwall 7.1; the datasheet calls it LIO 5.12-IP65, and the file it arrived in was labelled "Power Wall 6 - 5.6 kWh". The energy is 5.12 kWh, calculated and confirmed on the sheet as 51.2 V x 100 Ah.