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Five compact clear universal battery chargers with fold-out AC prongs and USB ports

Centenex Electronics

Centenex Electronics 5 Pack Universal Battery Charger USB 3.7V 200-3000mAh

SKU CH-YMCN-BVTM5

Five-pack universal charger powers 3.7 V lithium batteries from 200 mAh to 3000 mAh with adjustable contacts and a fold-away USB port

  • TypeCharger
  • Charges 3.7 V batteries from 200 to 3000 mAh capacity
  • Adjustable contacts fit any battery with terminals up to 1.5" apart
  • Folding AC prongs make the charger pocket-sized for travel
  • Built-in USB port lets you charge phones or power banks
  • Designed for 2.8 V to 5.9 V cells — prevents over-voltage damage

Universal 5-pack charger

The Centenex Electronics 5-pack supplies five identical universal chargers for 3.7 V lithium-ion cells. Each unit accepts batteries rated from 2.8 V to 5.9 V with contacts spaced up to 1.5 inches apart and a height no greater than 1 inch. The folding AC prongs let the charger slip into a glove box or purse. It is built for the small packs found in cameras, camcorders, PDAs and older phones.

Adjustable contacts and USB output

Spring-loaded contact arms move to match different battery widths, so one charger fits many form factors without interchangeable plates. A USB-A port on the side delivers 5 V power for phones, tablets or other USB devices while a battery charges in the cradle. The AC plug folds flat when not in use, reducing bulk during transport.

Capacity range and limits

The charger handles cells from 200 mAh up to 3000 mAh at 3.6 V or 3.7 V nominal voltage. Batteries above 3000 mAh or outside the 2.8 V to 5.9 V window are not supported and may be damaged if inserted. Users needing to charge larger capacity packs, higher-voltage chemistries or cells taller than 1 inch will need a different solution.

Highlights

  • Charges 3.7 V batteries from 200 to 3000 mAh capacity
  • Adjustable contacts fit any battery with terminals up to 1.5" apart
  • Folding AC prongs make the charger pocket-sized for travel
  • Built-in USB port lets you charge phones or power banks
  • Designed for 2.8 V to 5.9 V cells — prevents over-voltage damage

Specifications

BrandCentenex Electronics
ModelAS-CHUNIVERSALMINI3-USB-5
TypeCharger

Questions about this item

Do the sliding contacts wear out after repeated use with different batteries?

The adjustable contacts are designed for repeated insertion and removal across the 2.8 V to 5.9 V range, and the unit ships new with no moving parts that require lubrication or replacement.

What stops the charger from delivering current once the cell is full?

The charger is rated for batteries up to 3000 mAh, so capacity limit — not a timer — defines the end of a charge cycle.

Does the USB output stay active while the battery charges, and does the case get hot?

The USB port provides a 5 V pass-through for other devices while the battery charges, and the compact casing with folding AC prongs dissipates heat without a fan.

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