MH-5D81HP USB-C Single-Slot 18650/21700 Charger | 4.2V 1A, LED

Description

MH-5D81HP USB-C Single-Slot 18650/21700 Charger | 4.2V 1A, LED — 4.2V / 1000mA — Supports 18650/21700/26650/18500/14500/16340

Highlights / Why you’ll like it

• Single-slot control: Charge one cell at a time for consistent, trackable results.

• USB-C input: Labeled IN: Type-C for easy connection to standard 5V USB sources.

• Printed output profile: DC 4.2V ±0.1V / 1000mA for 3.7V lithium cells.

• Wide size support: Packaging lists 18650 / 21700 / 26650 / 18500 / 14500 / 16340.

• Status at a glance: Red while charging, green when full.

•  On-panel guide: Bars labeled 25% 3.2V, 50% 3.6V, 75% 3.9V, 100% 4.2V.

• Compliance icons: CE and RoHS shown on the box.

• Cable shown: USB-A to USB-C cable appears in the product photo.

Integration / Use / Wiring

• Power input: USB Type-C, DC 5.0V ±0.1V; side panel lists input current 1A–4A.

• Charging output: DC 4.2V ±0.1V / 1000mA.

• Battery chemistry & sizes: “3.7V lithium battery” in sizes 18650 / 21700 / 26650 / 18500 / 14500 / 16340.

• Slot count: 1.

• Polarity: + symbol molded at the fixed top contact; spring-loaded sled at the opposite end.

• Indicators: Bicolor LED—red during charge, green when full; four-bar printed scale for quick reference.

• Quick start: Connect a 5V USB source → insert one compatible cell with correct + / − → confirm red LED → remove when green.

• Safety notes printed on packaging:

  • Do not charge non-rechargeable batteries.

  • Avoid short-circuiting, disassembly, and high-temperature storage.

  • Do not mix rechargeable cells with dry or nickel-cadmium batteries; avoid charging different capacities/models together.

  • Do not charge damaged or deformed batteries; keep away from heat, wetness, and humidity.

Specifications

What’s in the box

• 1× MH-5D81HP single-slot charger

• 1× USB-A to USB-C cable

• Retail box