BatteryJack inc. 12V Battery Charger 2/10/50A
Charges 12V lead-acid batteries at 2A, 10A or 50A with ammeter and LED status indicators
- Charges 12V lead-acid batteries at three selectable rates
- 2A trickle mode maintains battery health over long storage
- 10A fast charge handles everyday recharging needs
- 50A engine-start setting delivers emergency cranking power
- Built-in ammeter and dual LEDs show real-time charging status
12V Deep-Cycle Battery Charger
The BatteryJack inc. charger handles 12-volt lead-acid and deep-cycle batteries with selectable 2-amp trickle, 10-amp fast and 50-amp engine-start rates. An integrated ammeter displays real-time charging current while dual LEDs confirm power and full-charge status. The unit is supplied new with a two-year warranty.
Suits owners needing variable-rate charging
Ideal for workshops and motorists who want one device for maintenance, daily top-ups and emergency cranking. Not suitable for 6-volt systems, lithium chemistries or applications requiring automatic desulfation or multi-voltage detection.
Three selectable charge rates decide fit
Choose 2 amps for long-term float, 10 amps for regular recharging or 50 amps for jump-start assistance. The correct setting matches the battery condition and urgency, so verify the required rate before connecting.
How it compares
Measured against everything we stock in Jump Starters, Chargers & Power Packs, at today’s prices. Recalculated every night.
- Price $51.99
- Pricier than about 90% of the 1,744 comparable items (median $14.99).
Specifications
No published specifications for this item yet.
Questions about this item
How do I connect the charger to my 12V lead-acid battery and which charge-rate switch do I set first?
Connect the clamps to the battery terminals, select the battery-type switch for SLA or deep-cycle, then choose 2A trickle, 10A fast charge, or 50A engine start before powering on.
What parts will need replacement after repeated use on my 12V battery?
The output cables and clamps wear with frequent connection cycles; the internal cooling fan may also require cleaning or replacement over time.
At what current does the thermal limit engage during a long 50A engine-start session?
Extended 50A output triggers the internal thermal protector, which pauses charging until the unit cools to a safe temperature.
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