# Rechargeable AAA battery, Lithium-Ion, 1.5V, 500mAh, 4-pack, USB Cable, Type-C

> 4-pack of rechargeable AAA Lithium-Ion batteries, model GMCELL-USBAAA-750mWh, constant nominal voltage 1.5V, capacity 500mAh (750mWh). Charges via integrated USB-C port, USB-A to 4x USB-C cable included, input current 1A-3A, full charge time approx. 2 hours. Up to 1000 charge cycles, self-discharge max. 5%/year, PCB protections, certifications CE, CB, KC, MSDS, RoHS.

- Page: https://sigmanortec.ro/en/rechargeable-aaa-battery-lithium-ion-15v-500mah-4-pack-usb-cable-type-c
- Price: 67.38 RON
- Availability: In stock; 1-2 zile
- Reference: 44012 · EAN: 5948337439993
- Category: Electronic components > Battery > Rechargeable Batteries
- Specifications: Technology: Lithium Ion; Quantity per package: 4 buc; Capacity: 500 mAh; Nominal voltage: 1.5 V; Battery size: AAA; Charging connector: USB Type-C
- Package (shipping data): 0.066 kg
- Updated: 2026-09-14
- Shop: [Sigmanortec.ro](https://sigmanortec.ro/en/llms.txt)
- Prices: RON, VAT included; prices and stock as of 2026-10-22 06:34 (Europe/Bucharest)

## Description

Set of 4 rechargeable AAA Li-Ion 1.5V batteries, provides constant voltage for stable operation in remote controls, toys, LED flashlights, cameras, and measuring instruments. They charge quickly via the integrated USB-C, with a 4-in-1 cable included, have low self-discharge for long-term storage, and electronic protections for safe use, supporting up to 1000 cycles.
GMCELL AAA 1.5V rechargeable batteries are a modern and eco-friendly alternative to AAA alkaline batteries, suitable for a wide range of household and professional devices. Built with A-grade lithium-ion cells in AAA format, they provide a constant 1.5V output throughout the discharge cycle, unlike NiMH batteries, which gradually drop from 1.4V to below 1.0V.
They can be used directly in remote controls, toys, calculators, clocks, cameras, LED lamps, multimeters, and other AAA-powered equipment, with no modifications required.
The nominal capacity of 750mWh (500mAh) per battery, low internal resistance, and constant 1.5V discharge technology make them suitable even for high-drain devices. Each battery supports up to 1000 charge-discharge cycles, retaining at least 80% of its capacity after 3 years of use under standard conditions. Self-discharge does not exceed 5% per year, making them ideal for storage or occasional use, without the risk of finding the batteries discharged when needed.
Charging is done through the integrated USB-C port built directly into the body, with no dedicated charger required. The included cable has one USB-A connector and 4 USB-C branches, allowing simultaneous charging of all 4 batteries. Supported input current is between 1A and 3A, with a full charge in approximately 2 hours. The integrated PCB provides protection against over-discharge, overload, short circuit, overcurrent, and temperature. The batteries are CE, CB, KC, MSDS, and RoHS certified.
Specifications:
Model: GMCELL-USBAAA-750mWh
Cell type: AAA lithium-ion
Nominal voltage: 1.5V
Nominal capacity: 750mWh (500mAh)
Charging voltage: 5V
Charging current: 1A-3A
Full charge time: approx. 2 hours
Self-discharge: max. 5% per year at 25°C
Life cycles: 1000 cycles (retention ≥80%)
Operating temperature: -20 to 60°C
Dimensions: 14.2 x 52.5mm
Included cable: USB-A to 4x USB-C (4 in 1)
PCB protections: over-discharge, overload, short circuit, overcurrent, temperature
Certifications: CE, CB, KC, MSDS, RoHS
Usage:
Remove the batteries from the packaging and check the USB-C port on each battery.
Connect the USB-A to 4x USB-C cable to a phone charger or to a USB port on a laptop.
Connect each USB-C branch to the corresponding port on each battery.
The green LED will blink intermittently while charging.
The green LED will remain steadily lit when charging is complete.
Disconnect the cable and insert the batteries into the device, observing the indicated polarity (+ and -).
The batteries can directly replace any 1.5V AAA alkaline battery without modifying the device.
When depleted, recharge using the same USB-C cable.
Package contents:
4x AAA batteries
1x USB-A to 4x USB-C cable