ML35-12LI-U1 12V 35Ah U1 LiFePO4 Replacement Battery for Heartway Frontier PF1

ML35-12LI-U1 is a sealed lithium iron phosphate (LiFePO4) rechargeable, maintenance-free battery engineered as a direct drop-in replacement for lead-acid units. Rated 12V 35Ah in a U1 case, it measures 7.56 inches x 5.19 inches x 6.69 inches. Terminal: Internal Thread. This listing includes only the battery and mounting screws—no wire harness or other mounting accessories are supplied. Compared with conventional sealed lead-acid batteries, this unit is stronger, lighter and offers a longer service life with an expected 2500 cycle life. A built-in Battery Management System (BMS) ensures safety by providing high voltage protection, low voltage protection, over high current protection, high temperature protection, short circuit protection, and over charge protection. The battery may be connected in series or in parallel, with a maximum of 4 identical batteries per bank. Use only a compatible lithium charger with this battery; loose terminals can generate heat and cause damage. Backed by a 30 day refund policy and a 2 year warranty.