Weijiang Power designs and manufactures NiMH/NiCd battery chargers for rechargeable AA, AAA, C, D and 9V cells and for custom NiMH battery packs. Our smart chargers use −ΔV and temperature (dT/dt) charge termination with timer and over-charge protection, and are offered in 2/4/6/8-bay desktop models with USB, AC mains or 12 V car input. We supply retailers, brands and device makers with retail-ready chargers and full OEM/private-label production.
Why Choose Weijiang NiMH Battery Chargers
- Automatic shut-off: −ΔV, dT/dt and safety-timer termination prevent over-charging and extend battery life.
- Multi-size compatibility: chargers for AA/AAA and combo models that also accept C, D and 9V NiMH/NiCd cells.
- Standard and fast charging: economy overnight chargers and high-current fast chargers with per-bay or per-pair control and LED status.
- Worldwide and portable inputs: AC 100–240 V, USB 5 V and 12 V car adapters for home, travel and industrial use.
- Safe and certified: CE, RoHS and REACH compliant, with safety and EMC documentation (such as UL/ETL/FCC) available to support your market.
Typical Charger Configurations
| Model Type |
Bays / Cells |
Input |
Charge Control |
| USB travel charger |
2–4 bays, AA/AAA |
USB 5 V |
−ΔV + timer, LED status |
| 4-bay smart charger |
4 bays, AA/AAA |
AC 100–240 V |
−ΔV / dT/dt, independent channels |
| Combo multi-size charger |
AA/AAA/C/D/9V |
AC 100–240 V |
Size-selectable, timer + −ΔV |
| Fast charger |
4 bays, AA/AAA |
AC / car 12 V |
High-current with temperature cut-off |
| Pack charger (OEM) |
Custom NiMH packs |
Per pack voltage |
CC charge + termination matched to the pack |
OEM, Private Label and Pack Chargers
We customize bay count, charge current, housing color, plug type (EU/UK/US/AU), packaging and branding, and we build dedicated chargers for custom NiMH packs used in tools, medical devices and emergency lighting. Chargers can be supplied together with our NiMH cells and NiMH battery packs as ready-to-sell kits.
Frequently Asked Questions
Q1: Can your chargers charge both NiMH and NiCd batteries?Yes. Most models charge both NiMH and NiCd AA/AAA (and combo models C/D/9V) cells, with chemistry-appropriate termination control.
Q2: Can AA and AAA batteries be charged together?Independent-channel smart chargers monitor each bay separately, so mixed sizes and capacities can be charged together on supported models.
Q3: How long does charging take?Standard chargers charge overnight at around 0.1C; fast chargers fully charge typical AA cells in a few hours, depending on capacity and bay current.
Q4: How does the charger prevent over-charging?Smart models combine −ΔV voltage detection, dT/dt temperature sensing and a safety timer, then switch to trickle or stop when charging is complete.
Q5: Do you provide chargers for custom NiMH battery packs?Yes — we design pack chargers matched to your pack voltage, connector and charge profile, including BMS/thermistor coordination on request.
Q6: What is the MOQ for branded or custom chargers?Standard models support flexible MOQ with samples available; private-label housing, plugs and packaging are quoted within 24 hours.
