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Compact rectangular black charger with red and green status LEDs and output leads

BatteryJack inc.

BatteryJack inc. 12V/6V SLA Battery Charger by TANK

SKU CH-G39F-8WZSF

A 3 A smart charger maintains 6 V and 12 V lead-acid batteries with three-stage charging and automatic shut-off

  • Charges 6 V and 12 V lead-acid batteries
  • Three-stage smart charging protects battery health
  • Automatic shut-off stops at full charge
  • Built-in short-circuit, polarity and over-voltage safeguards
  • Universal 100–240 V AC input for worldwide use

3-Stage Lead-Acid Charger

This 3.0 A smart charger handles both 6 V and 12 V sealed lead-acid batteries. It runs from 100-240 V AC at 50-60 Hz and uses constant-current, constant-voltage and float stages. LED indicators show red while charging and green when full.

For Occasional Top-Ups

Suits owners who need to maintain a single motorcycle, lawn-mower or backup battery at home. Builders who need to charge multiple packs simultaneously or require a higher amperage output should look at something else.

Built-In Protections Only

Short-circuit, reverse-polarity and over-voltage safeguards are integrated into the unit itself. No extra cables, mounting hardware or software are supplied, so the charger is ready to use straight from the box.

Highlights

  • Charges 6 V and 12 V lead-acid batteries
  • Three-stage smart charging protects battery health
  • Automatic shut-off stops at full charge
  • Built-in short-circuit, polarity and over-voltage safeguards
  • Universal 100–240 V AC input for worldwide use

Specifications

No published specifications for this item yet.

Questions about this item

What battery voltage and chemistry does the charger need to charge a 12 V lead-acid pack?

It charges 12 V or 6 V SLA batteries using a three-stage profile: constant current at 3.0 A, constant voltage between 14.3 and 14.7 V, then float at 13.5 to 13.8 V.

Can I leave the charger connected to a 6 V battery that is also wired to a vintage motorcycle's original electrical system?

Yes, the float stage holds 6.7 to 6.9 V and the unit includes short-circuit, reverse-polarity and over-voltage protection for safe long-term connection.

Which LED colour confirms the 3 A constant-current stage has finished and the battery is fully charged?

A green LED indicates the battery has reached full charge; red means the charger is still in the constant-current or constant-voltage stage.

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