53 BATTERIES mastervolt.us MLI Ultra Lithium Ion Series • Top performance, heavy duty Lithium Ion batteries • Ideal for running heavy loads for long periods and short charge times • Saves up to 70% in space and weight • Three times the lifespan of traditional batteries (2000 cycles) • High cycle efficiency • Fast charging up to half an hour • High discharge rate up to 3C • MasterBus communication with every Mastervolt battery charger • Integrated Battery Management System (BMS) • Integrated battery monitoring (Ah consumed, state of charge) • Series connection up to 10 batteries possible • Waterproof electronics cabinet • LiFePO4 chemistry • Tested and certified according to UN38.3 • Two year warranty MLI Ultra 12/2500 MLI Ultra 12/5000 MLI Ultra 24/5000 Part # 66012500 66015000 66025000 General Specifications Nominal battery voltage 13.2V 13.2V 26.4V Nominal battery capacity 180 Ah 360 Ah 180 Ah Nominal battery energy capacity 2500 Wh 5000 Wh 5000 Wh Max. charge current 500A (2.8 C) 500A (1.4 C) 500A (2.8 C) Max. continuous discharge current 500A (2.8 C) 500A (1.4 C) 500A (2.8 C) Peak discharge current 1800A (10 C) for 10s 1800A (5 C) for 10s 1800A (10 C) for 10s Cycle life 3500 cycles at 80 % DOD at 25 ⁰C, max. C3 charge and C2 discharge 3500 cycles at 80 % DOD at 25 ⁰C, max. C3 charge and C2 discharge 3500 cycles at 80 % DOD at 25 ⁰C, max. C3 charge and C2 discharge Battery monitoring integrated integrated integrated MasterBus communication yes yes yes Battery terminals M8 M8 M8 Mounting position upright or either long side upright or either long side upright or either long side Max. outer dimensions, lxwxh (incl. terminals/grip handles) 13.3" x 7.8" x 14" 341 x 197 x 355 mm 24.5" x 7.8" x 14" 622 x 197 x 355 mm 24.5" x 7.8" x 14" 622 x 197 x 355 mm Weight 68.3 lb / 31 kg 127.9 lb / 58 kg 127.9 lb / 58 kg Technical Specifications Battery chemistry Lithium Iron Phosphate Protection degree IP65 (electronics cabinet) Parallel connection yes, unlimited Series connection yes, up to 10 batteries (series balancing up to 2 batteries) Safety protections over voltage, under voltage, over temperature Automatic charging relays required, part # 7700 (12V) and part # 7702 (24V) Automatic charging relay controls integrated Automatic Charging Relays Automatic charging relays are required for proper install of Lithium Ion (LiFePO4) Batteries. Follow installation instructions for installing Lithium Ion Batteries. PRO PRO PRO Related Products Terminals & Covers page 148 ML-Series Automatic Charging Relays page 77 PRO Mastervolt Pro Products Products identified with Mastervolt Pro are available only to customers that have been trained and certified to provide system design, configuration and after-sale support for these technical products. Please contact your Power Products Sales Manager.