We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in

BatteryJack inc.

BatteryJack inc. 2-Pack 6V 12V 4A Automatic Charger Maintainer

SKU CH-M5NZ-Y075G

Two-pack of 4 A automatic chargers maintains 6 V and 12 V lead-acid and LiFePO₄ batteries with IP65 protection

  • Battery TypeAGM
  • Charges 6V and 12V lead-acid and LiFePO4 batteries
  • Microprocessor control prevents overcharging during maintenance
  • IP65 sealed case resists dust, oil and moisture
  • Includes alligator clips and ring terminals for easy connection
  • Two chargers in one pack for multiple vehicles

Two-pack 6 V/12 V smart maintainer

This two-pack supplies a pair of microprocessor-controlled chargers that handle 6 V and 12 V lead-acid, AGM, gel, VRLA, SLA, wet-cell and 12 V LiFePO4 batteries. Each unit delivers up to 4 A and offers maintenance, recondition, supply and winter modes for vehicles ranging from motorcycles and ATVs to RVs, boats and lawn equipment. The sealed IP65-rated case resists dust, oil and moisture for durable shop or garage use.

Verify battery voltage

Confirm the battery is either 6 V or 12 V and matches one of the supported chemistries listed above. Choose the correct output leads — alligator clips for temporary access or ring terminals for a semi-permanent installation — and ensure the charger’s mode selector is set to the appropriate program for the battery type. The unit is designed for indoor or sheltered outdoor use only.

Sealed case runs cool and silent in normal operation

With no moving parts the maintainer produces no audible fan noise and stays cool to the touch during typical charge and float cycles. The IP65 enclosure prevents dust and moisture ingress, so thermal performance remains stable without additional ventilation. Power draw scales with the selected charge rate and battery condition, peaking at the rated 4 A output.

Highlights

  • Charges 6V and 12V lead-acid and LiFePO4 batteries
  • Microprocessor control prevents overcharging during maintenance
  • IP65 sealed case resists dust, oil and moisture
  • Includes alligator clips and ring terminals for easy connection
  • Two chargers in one pack for multiple vehicles

Specifications

Battery TypeAGM

Questions about this item

Does the 2-pack include both alligator clips and ring terminals for each charger?

Yes, each of the two chargers comes with both alligator clips and ring terminals so you can choose the connection that suits the vehicle.

Which charging mode should I select for a 12 V LiFePO4 battery?

Use the dedicated 12 V LiFePO4 setting; the charger also supports 6 V and 12 V lead-acid types including AGM, gel and wet cell.

What does the IP65 rating mean for everyday use?

The sealed case is dust-tight and protected against low-pressure water jets, so the charger can stay connected in damp garages or outdoor shelters.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.