Metra GENIUS1 1A 6V/12V battery charger
A 1-amp smart charger and maintainer for 6V and 12V lead-acid and lithium batteries with temperature compensation, desulfation, and overcharge protection
- Amperage15 A
- Product colorBlack
- Key featuresABS Plastic, Black, Battery Clamps and Eyelet Terminals, 1 A
- All-in-one charger, maintainer, trickle charger and desulfator
- 35% smaller than G750 with 35% more power
- Thermal sensor adjusts charge to temperature for safe operation
- Recovers batteries from 1 V or zero volts with Force Mode
- Pulse charging reverses sulfation to restore battery health
Smart charging for 6V and 12V batteries
The Metra GENIUS1 is a 1 amp smart charger that handles both 6-volt and 12-volt lead-acid and lithium-ion batteries. It functions as a charger, maintainer, trickle charger and desulfator in one unit. An integrated thermal sensor adjusts the charge rate based on ambient temperature to prevent overcharging or undercharging.
Best for small-capacity batteries and maintenance
Suits owners of motorcycles, powersport vehicles, marine equipment and classic cars with batteries up to roughly 30 Ah who want automatic long-term maintenance. Not for jump-starting a dead vehicle or recharging large automotive batteries quickly. Buyers needing higher current for faster recovery or bigger banks should consider a more powerful model.
1 amp charging current decides suitability
The fixed 1 amp output determines how fast the unit can recharge a depleted battery and the maximum practical capacity it can maintain. It delivers 15 watts of output power and can begin charging from as low as 1 volt, with a manual Force Mode for completely dead cells. This current level fits small batteries but makes full recharges of larger packs slow.
How it compares
Measured against everything we stock in Jump Starters, Chargers & Power Packs, at today’s prices. Recalculated every night.
- Price $48.99
- Pricier than about 89% of the 1,744 comparable items (median $14.99).
Specifications
| Product | |
|---|---|
| Brand name | Metra |
| Model name | GENIUS1 |
| Product color | Black |
| Power | |
| Amperage | 15 A |
Questions about this item
Does the GENIUS1 come with both battery clamps and eyelet terminals or do I need to buy one separately?
The GENIUS1 includes both battery clamps and eyelet terminals in the box so no extra connectors are required.
The range shows GENIUS1 at 1 A and 30 Ah versus GENIUS2 at 2 A and 40 Ah — which suits a powersport battery best?
The GENIUS1 delivers 1 A charging current and supports batteries up to 30 Ah, matching typical powersport and small deep-cycle batteries.
What does the 1 A charging current mean when the charger is connected to a 12 V lead-acid battery in my garage?
At 1 A the GENIUS1 supplies roughly 15 W to a 12 V battery, giving a slow, safe charge that can be left connected indefinitely for maintenance.
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