Battery charger GP B631 for NiMH 9V block, NiMH micro AAA, Mignon AA cells

GP B631 is a compact battery charger designed for charging NiMH rechargeable cells in common household formats: 9V block, AAA (micro) and AA (Mignon). The unit provides a simple charging solution for existing NiMH batteries, enabling restoration of capacity for everyday devices such as remote controls, toys, flashlights and smoke detectors. The charger is intended for domestic and office use where straightforward, reliable recharging of standard NiMH cells is required.

Advantages

The charger supports multiple NiMH cell formats in a single compact housing, allowing users to recharge 9V blocks as well as AAA and AA cells without adapters. Its uncomplicated operation is suitable for non-technical users: insert the battery and follow the indicator lights. The design emphasizes space-saving storage and straightforward maintenance of rechargeable batteries, reducing the need for disposable cells and helping to keep frequently used devices powered.

Suitable for

• Recharging NiMH 9V batteries used in smoke detectors, multimeters and wireless microphones
• Charging AAA (micro) NiMH cells for remote controls, small toys and portable electronics
• Charging AA (Mignon) NiMH cells for flashlights, cordless mice/keyboards and gaming controllers

Key specifications

• Supported battery chemistries: nickel–metal hydride (NiMH)
• Compatible battery sizes: 9V block, AAA (micro), AA (Mignon)
• Charging mode: standard charge optimized for household NiMH cells
• Indicator: charge status LEDs for user feedback
• Power input: low-voltage mains adapter or built-in power cord (refer to product label for local voltage and plug type)
• Enclosure: compact plastic housing suitable for countertop or storage in a utility drawer

How to use

Place the GP B631 on a stable, non-flammable surface and connect it to the mains supply according to local electrical safety rules. Insert the NiMH battery into the appropriate slot or connector, ensuring correct polarity for AA/AAA cells and correct orientation for 9V blocks. Observe the charger indicator lights to verify charging has started; leave the battery in place until the indicator shows the charge cycle is complete. After charging, disconnect the battery and store both charger and batteries according to the manufacturer’s safety guidance.

Recommendations

Use only compatible NiMH rechargeable batteries and avoid attempting to charge alkaline or non-rechargeable cells. Allow batteries to cool before recharging if they are warm from recent use. Store the charger in a dry, ventilated location when not in use and follow local disposal regulations for batteries at end of life.