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Compact black plastic battery charger with clamps and eyelet terminals

Metra GENIUS1 1A 6V/12V battery charger

SKU CH-KP87-33E7Q MPN GENIUS1

A 1-amp smart charger and maintainer for 6V and 12V lead-acid and lithium batteries with temperature compensation, desulfation, and overcharge protection

  • Amp15 A
  • ColorBlack
  • 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.

Highlights

  • 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

Specifications

BrandMetra
ModelGENIUS1
Amp15 A
ColorBlack
FeaturesABS Plastic, Black, Battery Clamps and Eyelet Terminals, 1 amps, 120 volts, 12 volts, 1, 3 Year Limited, false, 0.95 pounds

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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