Magnum Energy MMS1012-L — 1000W 12V Pure Sine Inverter/Charger (50A PFC Charger, 20A Transfer)
The Magnum Energy MMS1012-L is a compact, pure-sine inverter/charger built for RVs and other mobile installs that don’t need massive power. It’s light, straightforward to wire, and engineered for dependable performance. A built-in power-factor–corrected (PFC) charger draws roughly 25–30% less generator current than conventional chargers, helping you stretch fuel and shore power. The distinctive, hourglass enclosure with a die-cast aluminum base doubles as a heat sink, improving operation in warmer conditions.
Delivering 1000W continuous AC from a 12V DC battery bank, the MMS1012-L also includes a 50A, 4-stage charger, an internal 20A transfer relay, and AC pigtails for easy hardwiring to your distribution panel. It’s mobile-friendly with isolated input/output neutrals and ships with a 15-ft battery temperature sensor for temperature-compensated charging. Pair it with a compatible Magnum remote (ME-RC, ME-ARC, or ME-MR) to pick built-in battery profiles—LFP (lithium), AGM1/AGM2, Gel, Flooded—so charging is optimized for your specific chemistry.
Key Features
- 1000W continuous pure sine output (120VAC)
- 50A smart charger (4-stage, PFC for lower generator draw)
- 20A internal transfer relay for auto shore/gen switching
- True-RMS regulation for stable voltage to sensitive loads
- Selectable battery profiles: LFP (lithium), AGM1/AGM2, Gel, Flooded, plus custom
- Temp-comp charging with support for deeply discharged batteries
- Flexible mounting; fan-cooled for tight installs
- Front ON/OFF switch with status LED
- Built-in input/output breakers; comprehensive protections (over/under-voltage, over-temp, overload)
- Certifications: ETL to UL/cUL 1741 & 458, CSA C22.2 #107.1-01
- Warranty: 2 years
In the Box
- Magnum MMS1012-L, 12V Pure Sine Inverter/Charger
- ME-BTS-15 battery temperature sensor (15 ft)
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Owner's manual
Compatible Accessories (sold separately)
- MM-DCLD DC load disconnect
- MM-ISA ignition switch activator
- MM-RC25, ME-MR25-L, ME-RC50-L remote controls
- ME-ARC50-L advanced remote
- ME-AGS-N auto generator start
- ME-BMK-L battery monitor kit
- ME-MW-E MagWeb Ethernet / ME-MW-W MagWeb Wireless monitors
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