BatteryJack inc.
BatteryJack inc. 6V/12V 3A Sealed Lead Acid Battery Charger TANK
A 3 A smart charger for 6 V and 12 V sealed lead-acid batteries with automatic shut-off, three-stage charging and built-in short-circuit, polarity and over-voltage protection
- Charges 6 V and 12 V sealed lead-acid batteries
- Three-stage smart charging protects battery health
- Automatic shut-off stops charging when full
- Built-in short-circuit, polarity and over-voltage safeguards
- Compact 120 mm × 60 mm × 38 mm design fits tight spaces
Built for 6 V and 12 V lead-acid batteries
This automatic smart charger handles sealed lead-acid packs at six or twelve volts with a three-amp output. It suits owners of motorcycles, lawn equipment, emergency lighting or small backup systems who need a compact maintainer that stops charging when the battery is full.
Plugs into any mains socket worldwide
The unit accepts 100 to 240 V AC at 50 to 60 Hz and draws 1.0 A, so it connects directly to a wall outlet without a separate transformer. Its three-stage profile — constant current at 3.0 A, constant voltage at 14.3 to 14.7 V for 12 V or 7.2 to 7.4 V for 6 V, then float at 13.5 to 13.8 V or 6.7 to 6.9 V — frees the user from manual monitoring.
LED status and built-in protections replace
A red LED shows charging in progress and green confirms a full charge, removing the need for a multimeter. Short-circuit, reverse-polarity and over-voltage safeguards protect both the charger and the battery, while CE compliance confirms the safety baseline for European markets.
Highlights
- Charges 6 V and 12 V sealed lead-acid batteries
- Three-stage smart charging protects battery health
- Automatic shut-off stops charging when full
- Built-in short-circuit, polarity and over-voltage safeguards
- Compact 120 mm × 60 mm × 38 mm design fits tight spaces
Specifications
No published specifications for this item yet.
Questions about this item
What is the maximum charging current the unit can deliver before it switches to float mode?
The charger supplies a constant current of 3.0 A (±0.3 A) until the battery reaches the absorption voltage, then tapers to the float range.
How much heat or noise does the charger produce when left on continuously?
The sealed enclosure has no fan; it runs silently and its surface stays warm but within the limits implied by the CE compliance.
Which battery connectors must I already have to attach this charger?
The output leads end in bare wire or ring terminals, so you need matching clamps or a fused ring-harness that fits your battery posts.
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