HQST 660Ah LiFePO4 Battery System 2-Pack 330Ah Batteries
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$869.98at HQST Solar PowerChecked Nov 11
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This is a two-pack of HQST's 12V 330Ah LiFePO4 batteries, each rated at 4,224Wh with a 200A BMS and a built-in display for voltage, current and state of charge. The compact 15.08 × 7.64 × 10.24 in case fits tight spots like toolbox power boxes, and the cells are rated up to 8,000 cycles at 70% depth of discharge. Low-temperature cut-off and 4S4P expandability make it a fit for RV, marine, cabin and home backup builds. Against 100Ah-class batteries it trades a much larger single-unit capacity for weight and bulk, so it suits buyers who want fewer parallel strings rather than light portability.
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Lowest price we've seen: $869.98 on Nov 11 at HQST Solar Power. Tracked across 1 store since Nov 11.
Owners say the batteries charge, hold charge and run their setups as described, and call the built-in display genuinely useful.
This is a 2-pack of HQST 12V LiFePO4 (lithium iron phosphate) batteries, 660Ah in total. Each battery is rated 330Ah, which is 10% more than the previous 300Ah model, and has 4,224Wh of rated energy. The compact housing has side handles and terminals.
Each battery uses automotive-grade LiFePO4 cells rated up to 8,000 cycles at 70% depth of discharge. A 200A BMS supports up to 200A continuous discharge. It protects against overcharge, over-discharge, overcurrent, short circuits and excess temperature. Aluminum components help cool the BMS, and a low-temperature cut-off protects the battery during charging and discharging in freezing weather.
The batteries can be expanded up to a 4S4P configuration. They suit RV, marine, cabin and home backup systems. Charge only with a compatible LiFePO4 charger or solar charge controller.
