Battery Charger Voltcraft P9-4 for 9V Block Batteries — Compatible with NiCd, NiMH and Li‑Ion

Voltcraft P9-4 is a dedicated battery charger designed specifically for 9V block batteries. It supports charging of NiCd, NiMH and Li‑Ion chemistries and provides controlled charging for single 9V cells used in a variety of portable devices. The compact unit is intended for home, workshop or professional environments where standard 9V blocks are commonly used and must be charged or maintained.

Advantages

The charger recognises and accepts multiple rechargeable chemistries — NiCd, NiMH and Li‑Ion — enabling safe charging of compatible 9V block batteries. It offers a single-battery charging solution that reduces the need for multiple chargers, and its physical design accommodates the typical 9V block form factor. The device provides regulated charging appropriate for small-format 9V cells, helping to avoid overcharging when used according to the manufacturer’s instructions.

Suitable for

• Recharging single 9V block batteries for smoke detectors, microphones, and multimeters
• Maintaining rechargeable 9V cells in workshops, labs and service centres
• Recharging 9V batteries used in portable measurement and test equipment

Key specifications

• Supported chemistries: NiCd, NiMH, Li‑Ion
• Form factor: 9V block battery (6F22 / rectangular 9V type)
• Charging mode: single-cell charging with chemistry selection
• Power input: mains-powered charger (AC mains adapter or built-in supply as supplied by manufacturer)
• Indicators: charging status indicator(s) to show battery condition and charging progress
• Protection features: built-in measures for regulated charging and prevention of overcharge when used properly

How to use

Insert a compatible 9V rechargeable battery into the charger following the polarity markings. Select the appropriate chemistry mode if the unit requires manual selection; otherwise the charger will operate according to the built-in settings for supported cell types. Connect the charger to mains power and observe the charging indicator(s) to monitor progress. When the indicator shows charging complete, disconnect the battery and remove it from the charger. Refer to the supplied user manual for detailed safety and operation instructions.

Recommendations

Use only 9V rechargeable batteries specified for NiCd, NiMH or Li‑Ion chemistries. Avoid charging non-rechargeable (primary) 9V batteries. Charge batteries in a well-ventilated area, on a non-flammable surface, and follow the manufacturer’s timing and indicator guidance. Store the charger and batteries in a dry environment and consult the user manual for maintenance, troubleshooting and recommended charging intervals.