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Compact black smart battery charger with LCD screen and hook attachment

BatteryJack inc.

BatteryJack inc. 6V 12V 750mA Smart Battery Charger Maintainer car electronics accessory

SKU CH-VTX1-8YR11

A fully automatic smart charger and maintainer for 6V and 12V lead-acid batteries with a 750mA output, LCD voltage display, and multiple safety protections

  • Product typeWired Car Charger
  • Automatically detects 6V or 12V batteries for versatile use
  • Maintains charge without overcharging to extend battery life
  • LCD shows measured voltage with bar-graph charge indicator
  • Protected against short circuit, reverse polarity, overcharge and overheat
  • 75 A output keeps stored lead-acid batteries ready

Smart Battery Charger Maintainer

The BatteryJack inc. unit is a fully automatic smart charger and maintainer for 6V and 12V lead-acid batteries. It delivers a constant 750mA charge current and includes an integrated battery voltage tester. An LCD shows measured voltage with a bar-graph charge indicator and digital prompts guide each step.

Suits owners of cars motorcycles

This charger suits owners who need to keep stored lead-acid batteries topped up without overcharging. It automatically senses 6V or 12V so one device covers both systems. Buyers who want more storage or faster charging for large banks should look at something else.

Steady 0.75 amp output holds voltage without spikes

Under sustained load the charger holds 7.2V for 6V batteries and 13.9V for 12V units while protection circuits guard against overcharge overheat short circuit and reverse polarity. The low current means it maintains rather than rapidly recharges deeply discharged packs.

How it compares

Measured against everything we stock in Car Audio Accessories & Wiring, at today’s prices. Recalculated every night.

Price $19.99
Cheaper than about 60% of the 2,768 comparable items (median $21.99).

Specifications

Product
Product typeWired Car Charger

Questions about this item

Does my battery need to be a 6 V or 12 V lead-acid type for the 750 mA charger to work?

Yes, the unit only charges and maintains 6 V or 12 V lead-acid batteries at 750 mA.

Can I leave the maintainer connected to a stored motorcycle battery that still has the bike’s original wiring harness attached?

Yes, the maintainer prevents overcharging and is protected against reverse polarity and short circuit while connected.

How do I confirm the charger is delivering the correct voltage after I hook it up?

The LCD shows the measured voltage and a bar graph; it should read about 7.2 V for a 6 V battery or 13.9 V for a 12 V battery when charging.

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