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
Compact rectangular black charger with status LEDs and output leads

BatteryJack inc.

BatteryJack inc. 6V 3A Sealed Lead Acid Smart Charger

SKU CH-HSMR-PB1J0

A 6V and 12V sealed lead-acid smart charger delivering 3A with automatic three-stage charging and short-circuit protection

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

6V 3A Smart Charger for Lead-Acid Batteries

This smart charger handles both 6V and 12V sealed lead-acid batteries using a three-stage process. It is suited for maintaining vehicle, motorcycle or backup-power batteries. The unit accepts 100 to 240V AC input at 50 to 60Hz and delivers up to 3.0A charging current.

Three-Stage Charging with Automatic Shutoff

The charger moves through constant-current, constant-voltage and floating phases automatically. For 6V batteries the constant-voltage window is 7.2V to 7.4V and the float window is 6.7V to 6.9V. Charging stops when the green LED shows the battery is full.

Built-In Safety Protections

Short-circuit, reverse-polarity and over-voltage safeguards protect both the charger and the battery during connection errors. A red LED indicates active charging while a green LED signals completion. The compact housing measures 120.0 x 60.0 x 38.0mm and the unit carries CE compliance.

How it compares

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

Price $13.99
Cheaper than about 60% of the 1,744 comparable items (median $14.99).

Specifications

No published specifications for this item yet.

Questions about this item

What does the 3.0 A constant-current rating mean when the charger is connected to a 6 V battery?

The charger will deliver up to 3.0 A during the bulk phase until the battery reaches 7.2 V to 7.4 V, then switch to a float voltage of 6.7 V to 6.9 V.

What does the 100 V to 240 V AC input range and 50 Hz to 60 Hz frequency rating cap in practice?

The unit accepts worldwide mains voltages from 100 V to 240 V at either 50 Hz or 60 Hz without a selector switch.

Will the 120.0 mm x 60.0 mm x 38.0 mm case fit on a standard DIN rail or wall bracket?

The charger measures 120.0 mm long, 60.0 mm wide and 38.0 mm high; it has no DIN-rail clip, so surface mounting requires screws or adhesive.

More in Jump Starters, Chargers & Power Packs

Similar items