Frequently Asked Questions
Q1: What is the nominal voltage and capacity of this AA NiMH battery?
A: This is a AA nickel-metal hydride (NiMH) rechargeable battery with a nominal voltage of 1.2V and a rated capacity of 500mAh. It is a direct rechargeable replacement for single-use AA (LR6/AM-3) alkaline cells in compatible devices.
Q2: What devices is this AA 500mAh NiMH battery suited for?
A: It is designed for low-drain and always-ready AA devices including remote controls, solar garden lights, cordless phones, electric toothbrushes, clocks and LED candles. For medium/high-drain toys and flashlights, consider our 1300-2400mAh AA cells.
Q3: How do I charge the AA 500mAh NiMH battery?
A: Use a charger designed for NiMH/NiCd cells. Standard charging is about 0.1C (50mA) for 14-16 hours; a smart charger with -dV/dt or temperature cut-off allows faster charging. Never use a charger intended only for lithium-ion cells.
Q4: What is the cycle life and self-discharge of this AA cell?
A: Under IEC-standard charge/discharge conditions it provides 500-1000 cycles and retains about 60%%+ of capacity after 28 days of storage. Keeping the cells at roughly 40-60%% charge in a cool, dry place maximizes service life.
Q5: Can you customize these batteries with tabs, wires, connectors or private label?
A: Yes. As the OEM/ODM factory we can add nickel solder tabs, lead wires and connectors, match and balance cells, add PCM/BMS protection for packs, and customize PVC heat-shrink colour and printing, retail blister cards and private-label branding on our NiMH cells. Contact us with your requirements for a quotation.
Q6: What certifications, MOQ and lead time apply?
A: CE, RoHS, REACH, MSDS/SDS, UN38.3 and IEC 62133 documentation are available for export shipment. Standard cells MOQ starts from 100 pcs; custom pack and label MOQ is flexible. We quote within 24 hours, supply samples for evaluation, and mass production is typically ready in about 15 days.
Full Technical Specifications (WJ H‑AA500J)
| Parameter Item |
Specification |
| Model Number |
WJ H‑AA500J |
| Nominal Voltage |
1.2V per cell |
| Rated Capacity |
500mAh (Minimum 450mAh) |
| Cell Size |
AA Cylindrical |
| Dimension (D×H) |
Φ14.5mm × 50.5mm |
| Weight |
Approx 13.5g |
| Internal Resistance (1kHz, fully charged) |
≤ 60 mΩ |
| IEC Cycle Life |
≥500 cycles (IEC61951‑2:2017) |
| Max Continuous Discharge Current |
500mA (1C) |
| Standard Charge |
50mA (0.1C), 16 hours |
| Fast Charge |
250mA‑500mA with charge‑termination control |
| Discharge Temperature Range |
-10℃ ~ +55℃ |
| Short‑term Storage Temperature (<30 days) |
-20℃ ~ +55℃ |
| Cut‑off Discharge Voltage |
1.0V/cell |
| 28‑day Self‑discharge Retention |
≥60% capacity @20℃ |
| Certifications |
PPWR,CE, RoHS, REACH, MSDS documents available |
Core Performance Advantages
- ≥500 IEC‑standard cycles: Pass IEC61951‑2‑2017 cycle test under standard 0.2C charge‑discharge condition for long‑term standby equipment.
- Low internal resistance ≤60mΩ: Great large‑current discharge performance for portable low‑power instruments.
- Wide operating temperature: Discharge range from -10℃ up to +55℃, suitable for indoor and partial outdoor equipment scenarios.
- Good self‑discharge performance: Retain ≥60% capacity after 28‑day storage at 20℃ ambient temperature.
- Rigorous safety validation: Pass over‑charge, over‑discharge, short‑circuit, vibration and drop test per internal specification.
- Flexible OEM support: Support spot‑welding, lead‑wire, terminal, connector and custom Ni‑MH battery‑pack assembly based on AA 500mAh cell.
Performance Characteristic Curves
1.0C Rate Charging Curves
0.1C-1.0C Multi-Rate Charging Curves
0.2C / 0.5C / 1C Discharging Curves
Storage & Self-Discharge Retention Curves
OEM Ni‑MH Battery‑Pack Service
We provide OEM & ODM custom assembly service based on WJ H‑AA500J AA Ni‑MH cells. We support series‑parallel combination, spot‑weld tabs, lead‑wires, various connectors and plastic housing custom‑made to match your device requirements.
Typical Application Scenarios
This AA‑500mAh Ni‑MH rechargeable cell fits various low‑power portable electronic and industrial devices.
Portable measuring instruments Wireless remote controllers Alarm & sensor equipment Household small electronics Portable consumer gadgets Light‑duty portable industrial devices
Frequently Asked Questions
Q1: What is cycle‑life of AA 500mAh Ni‑MH battery?
A: ≥500 cycles tested according to IEC61951‑2‑2017 standard under 0.2C charge‑discharge test conditions.
Q2: What is internal resistance for this AA Ni‑MH cell?
A: ≤60mΩ when fully‑charged, measured under 1KHz AC condition.
Q3: Can you assemble custom battery packs from AA 500mAh cells?
A: Yes, we support OEM custom packs with tabs, wires and different connectors. Visit our custom‑pack service page for details.
Q4: What certificates can you provide for this cell?
A: PPWR, CE, RoHS, REACH and MSDS documents are available for export shipment.
Q5: Are samples available for performance testing?
A: Samples can be offered, customer covers freight cost for sample shipment.
Manufacturer & Certification Support
Weijiang Power is a professional Ni‑MH rechargeable battery manufacturer with 16‑year production experience. Equipped with independent aging‑testing laboratory and automated assembly production lines. Complete export certification documents and mass‑production capacity for OEM projects.
Need Quotation or Test Samples for AA 500mAh Ni‑MH Battery?
Contact us for bulk unit price, OEM custom‑pack solution and official technical datasheet.
