Introduction
This manual provides essential information for the safe and effective use of your WENJOOP 2800mAh NiMH AA rechargeable batteries. Please read thoroughly before first use.
Product Features
- High Capacity: 2800mAh NiMH AA batteries for long-lasting power.
- Low Self-Discharge: Retains 85% power after 3 years of non-use.
- Rechargeable: Can be recharged up to 1200 times.
- Wide Temperature Tolerance: Operates from -40°F to 140°F.
- Safety Features: Leak-proof, memory-free design, with effective overcharge and over-discharge protection.
- Eco-Friendly: Reduces harmful battery waste.

A pack of 12 WENJOOP 2800mAh NiMH AA rechargeable batteries, highlighting their 1.2V Ni-MH specification and green leaf logo.
Setup
Your WENJOOP rechargeable batteries come pre-charged and ready to use.
- Unpacking: Carefully remove batteries from their packaging.
- First Use: Insert batteries into your device according to the polarity markings (+/-).

An illustration emphasizing the 2800mAh high capacity of a single WENJOOP AA rechargeable battery.

A graph illustrating the low self-discharge rate of WENJOOP batteries compared to others over a 3-year period.
Operating Instructions
These batteries are designed for a wide range of devices.
- Compatible Devices: Suitable for household appliances, toys, remotes, clocks, toothbrushes, digital cameras, gaming controllers, flameless candles, and wireless gadgets.
- Optimal Performance: For best results, ensure batteries are fully charged before use.
Official WENJOOP video demonstrating the use of rechargeable AA batteries in various household devices like gaming controllers and remote controls.

An image showing WENJOOP AA batteries being used in a gaming controller, remote, digital camera, and computer mouse, highlighting their wide applicability.
Maintenance
Proper maintenance ensures longevity and optimal performance.
- Charging: Use a compatible NiMH battery charger. Do not overcharge.
- Storage: Store in a cool, dry place when not in use.
- Cleaning: Keep battery terminals clean and dry.
Official WENJOOP video showcasing the durability and long battery life of the rechargeable AA batteries, including charging demonstrations.

An image depicting WENJOOP AA batteries being fast-charged in a wall-mounted charger, indicating 3x faster charging.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Battery not charging | Charger incompatibility or faulty battery | Ensure charger is compatible with NiMH AA batteries. Try a different battery or charger. |
| Device not powering on | Incorrect polarity or depleted battery | Check battery orientation (+/-). Recharge batteries if depleted. |
| Shortened battery life | Frequent deep discharge or extreme temperatures | Avoid fully discharging batteries. Operate within recommended temperature range (-40°F to 140°F). |
Official WENJOOP video demonstrating the advanced NiMH technology of the rechargeable AA batteries.

An exploded view diagram illustrating the internal components of a WENJOOP battery, highlighting its leak-proof protection features.
Specifications
- Battery Type: NiMH AA
- Voltage: 1.2V
- Capacity: 2800mAh
- Recharge Cycles: Up to 1200 times
- Self-Discharge Rate: Retains 85% charge after 3 years
- Operating Temperature: -40°F to 140°F
- Manufacturer: Huizhou Shenzhou Super Power Technology Co.,LTD
- Country of Origin: China

An image showing a WENJOOP battery performing well in both cold (-40°F) and hot (+140°F) conditions, highlighting its various protection features.
Warranty and Support
WENJOOP provides over 3 years of warranty on Rechargeable AA Batteries.
For any questions or support, please contact us. We aim to respond within 12 hours.

An image emphasizing the eco-friendly nature of WENJOOP batteries, showing them free of harmful substances like Mercury (Hg), Cadmium (Cd), and Lead (Pd).