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Compact black battery charger with clamps and eyelet terminals

Metra GENIUS2 2A 6V/12V battery charger

SKU CH-JQAP-D0RDT MPN GENIUS2

Smart 2-amp charger maintains 6 V and 12 V lead-acid or lithium batteries with automatic desulfation, temperature compensation and overcharge protection

  • Amperage15 A
  • Product colorBlack
  • Key featuresBlack, Battery Clamps and Eyelet Terminals, 2 A, 12 V, 1, 3
  • Charges lead-acid and lithium batteries including Flooded, Gel, AGM, Marine and Deep-Cycle
  • Force Mode manually charges batteries down to zero volts bypassing internal sensing
  • Temperature compensation adjusts each charge cycle to ambient conditions for exact charging
  • Automatic maintenance reconditions every 24 hours and prevents overcharging completely
  • Includes battery clamps and eyelet terminals for flexible connection options

Compact 2 A smart charger for 6 V and 12 V batteries

The Metra GENIUS2 is a 2-amp automatic maintainer and desulfator built for lead-acid and lithium-ion chemistries including Flooded, Gel, AGM, Marine and Deep-Cycle types. It suits owners of motorcycles, cars, boats and seasonal equipment who want a single device that charges, maintains and recovers batteries without manual intervention.

Charge rate caps recovery speed for larger banks

At 2 A output the unit delivers roughly 30 W, so a 40 Ah battery reaches full charge in many hours while a 120 Ah bank would need significantly longer. The 15 A specification in the data refers to a different metric and does not raise the charging current; users with high-capacity or parallel battery sets should expect extended charge times.

Force Mode enables manual recovery from zero volts

The single decisive feature is Force Mode, which bypasses the internal voltage sensor and lets the charger push current into a battery that reads 0 V. If your workflow regularly encounters deeply discharged cells that standard automatic chargers reject, this function makes the GENIUS2 the right part; if every battery you service still shows measurable voltage, the extra capability goes unused.

How it compares

Measured against everything we stock in Jump Starters, Chargers & Power Packs, at today’s prices. Recalculated every night.

Price $67.99
Pricier than about 90% of the 1,744 comparable items (median $14.99).

Specifications

Product
Brand nameMetra
Model nameGENIUS2
Product colorBlack
Power
Amperage15 A

Questions about this item

Should I pick the GENIUS2 or a higher-amp model for my battery?

The GENIUS2 delivers 2 amps and suits batteries up to 40 Ah. For larger capacities the GENIUS5 handles 120 Ah and the GENIUS10 covers 230 Ah, so match the charger amp rating to your battery's amp-hour rating.

What does the 2-amp rating mean when the charger is connected to a vehicle battery?

It supplies up to 2 amps continuously, automatically adjusting voltage for 6 V or 12 V systems, and runs a repair cycle every 24 hours to recondition the battery without overcharging.

Which charging modes does the GENIUS2 support and what limits apply?

It charges 6 V and 12 V lead-acid types including Flooded, Gel, AGM, Marine and Deep-Cycle, plus lithium-ion, with temperature compensation that alters each cycle for the ambient conditions.

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