PRODUCT DETAILS
The Go Power! GPC-100-MAX is a 100-amp, 120V AC to 12V DC smart converter and three-stage battery charger. Plugged into shore power, it runs your RV's 12-volt lights, fans, pump and electronics up to 100 amps continuous while it charges and maintains the battery bank — sized for motorhomes and large lithium or multi-battery banks.
Switch-mode design keeps it compact and light (9 lb) and better than 85% efficient. Out of the box it charges in three automatic stages — Boost (14.6V) to bring a drained battery back fast, Normal (13.6V) to finish the charge and carry your 12V loads, and Storage (13.2V) to keep the battery fresh without overcharging. A fixed-output mode with an adjustable 13–16.5V setpoint lets you match the charge voltage to lithium batteries.
Built-in protection covers reverse battery polarity, brown-out input, over-current and over-temperature, and a proportional fan ramps up and down slowly so it stays quiet. 2-year warranty and a North American support team (part of Dometic).
FEATURES
- 100A continuous 12V output (1460 W) — powers 12V loads and charges the battery from 120V shore power.
- Automatic three-stage charging — Boost 14.6V, Normal 13.6V, Storage 13.2V.
- Lithium-capable fixed-output mode — adjustable 13–16.5V boost setpoint.
- Protection — reverse polarity, brown-out, over-current (cycle-by-cycle limiting), over-temperature, short circuit.
- Quiet proportional fan — speed follows internal temperature.
- Compact switch-mode design — 7.8 × 9.5 × 3.5 in, 9 lb, >85% efficient.
- 2-year warranty, North American support team (part of Dometic).
WHAT IT RUNS
SPECIFICATIONS
| Model | GPC-100-MAX |
|---|---|
| Item Number | 66912 |
| Output Current, Max Continuous | 100 A |
| Output Power, Continuous | 1460 W |
| DC Output Voltage | 13–16.5 V DC (no load, adjustable); 3-stage 14.6 / 13.6 / 13.2 V |
| Output Voltage Tolerance | ± 0.7% (no load) |
| Battery Banks | 1 |
| Input Voltage | 105–135 V AC, 47–63 Hz |
| Max AC Current @ 108 V AC | 15 A |
| Max Inrush Current, Single Cycle | 40 A |
| Typical Efficiency | > 85% |
| Protection | Short circuit, overload (>100%), thermal, reverse polarity, brown-out |
| Fan Control | Proportional |
| Operating Temperature | 0–45 °C |
| Dimensions | 7.8 × 9.5 × 3.5 in |
| Weight | 9 lb |
| Warranty | 2 years |
COMPARE MODELS
MANUALS, SAFETY INFORMATION AND DOWNLOADS
ACCESSORIES
FAQ
What does a converter / charger do?
When your RV is plugged into shore power or a generator, the GPC-100-MAX converts 120V AC to 12V DC. It powers the 12V system (lights, fans, water pump, furnace blower, electronics) and charges the house battery at the same time, up to 100 amps combined.
Will it charge lithium batteries?
Yes. Switch the unit to Fixed Output mode and set the boost voltage (13–16.5V) to your lithium battery's recommended charge voltage, following the steps in the manual. Out of the box it is set for three-stage lead-acid charging.
Which amperage do I need?
Match or exceed your existing converter's rating, and allow roughly 10–20% of your battery bank's amp-hours as charge current plus your typical 12V load. Larger banks and motorhomes usually need the 75A or 100A model.
What does it plug into?
A grounded 120V outlet. It draws up to 15 amps AC at 108V. Connect the DC output to the battery or 12V distribution with correctly sized wire and a breaker within 18 in of the battery.
What's the warranty?
2 years from the date of purchase, backed by Go Power!'s North American support team (part of Dometic).