DAH Solar 200kWh LiFePO4 Battery - High Capacity Solar Energy Storage System for Residential & Commercial Use

Had a buyer last week who was trying to power a small commercial building with solar and wanted something that wouldn't need replacing every few years—we pointed them straight to the 200kWh setup, and they basically said it's more than they expected but exactly what they needed for the long haul, since cycle life is over 6000 cycles at 80% DOD and the design life runs 15 years or so.

Nominal votage sits at 716.8V with a cell capacty of 280Ah, and the charge cut-off hits 795.2V while discharge cut-off is 616V, which matters for inverter compatiblity more than most buyers realize. Maximum continuous current is 200A, though we typically recommend 100A for daily cycling to stretch that cycle life even further. Communication interfaces include RS485, RS232, and CAN, so integration with most systems is pretty straightforward.

It's not really suited for small residential setups where you're just backing up a few lights and a fridge—that would be overkill and awkward to install given the rack dimensions of 1090×780×2190mm and a weight of 1804kg. For commercial applicaion or larger homes with heavy loads, though, it handles temperature ranges form -10°C to 50°C on discharge and 0°C to 50°C on charge, and storage temp goes from -20°C to 60°C, so you can put it in a conditioned garage or utility room without fretting. One thing buyers don't always ask about is that the modules themselves are 483×245×792mm each, and you get 280 of them in the rack, so planning the footprint ahead of time saves headaches.

Bulk pricing depends on volume and lead time—usually our company have stock, but confirm for large orders since shipping 1804kg units takes about 20 days or so. MOQ is typically one unit, but we've seen buyers order up to 16 in series for larger projects, and we handle the COAs and certifications like CE, IEC, UL, and UN38.3 without extra fuss.