The Delipow 9V 800mAh Lithium Ion Rechargeable Battery is a 9V rechargeable battery built to replace single-use alkaline cells in everyday electronics:
- Pairs with a standard external 9V battery charger — a straightforward swap for devices that already use a conventional charging dock (unlike USB-charging 9V lithium battery models).
- Rated capacity of 800mAh with built-in protection against short circuits and overcurrent.
- Designed for devices such as smoke detectors, wireless microphones, guitar effects pedals, and multimeters.
Key Features
- High capacity without memory effect.
- Short circuit and over-current protection.
- Stable performance, small internal resistance.
- Environmental protection.
- Battery Type: Li-ion Battery.
Charging & Compatibility
- Standard 9V li-ion battery charged with an external 9V battery charger — no built-in USB port.
- Looking for USB charging instead? Browse the rest of our Batteries & Chargers category for USB-rechargeable 9V lithium battery options.
- Rated Voltage: 8.4V
- Discharge cut-off voltage: 7V
- Charging Voltage (standard): 9V
- Discharge current (standard): 50mA
Common Uses for This 9V Lithium Battery
- Fits any device designed for a standard 9V (6F22-size) battery.
- Smoke detectors · Wireless microphones · Guitar effects pedals · Multimeters · Remote-control toys.
- A reusable alternative to disposable alkaline batteries in all of the above.
Technical Specifications
- Battery Type: Li-ion
- Rated Capacity: 800mAh (0.2C discharge)
- Rated Voltage: 8.4V
- Discharge cut-off voltage: 7V
- Charging Voltage (standard): 9V
- Discharge current (standard): 50mA
Safety Warnings
- Never reverse the positive and negative terminals.
- Never connect the positive and negative terminals with metal.
- Never carry or store the battery together with metal objects such as hairpins or necklaces.
- Never knock, throw, or trample the battery.
- Never expose the battery to water or fire; keep it in a dry, cool place when not in use. The recommended temperature for long-term storage is 10–45°C.
- Never use the battery near strong static or magnetic fields, as this may damage the protection circuit.
- If the battery shows a peculiar smell, heating, distortion, or any abnormality during use, storage, or charging, remove it from the device or charger and stop using it.
Frequently Asked Questions
Is this a USB rechargeable 9V battery?
No — this Delipow 9V 800mAh battery uses a standard external 9V battery charger, not USB charging. Need USB charging? Look for a USB-rechargeable 9V lithium battery instead.
What is the rated capacity and voltage of this battery?
Rated at 800mAh (0.2C discharge) with a nominal voltage of 8.4V. It delivers the same working voltage range as a standard 9V battery for most household devices.
What devices can I use this 9V rechargeable battery with?
Any device designed for a standard 9V (6F22-size) battery — smoke detectors, wireless microphones, guitar effects pedals, multimeters, and similar electronics.
How does it compare to other 9V rechargeable batteries like Energizer's?
It's reusable across many cycles instead of single-use, like other 9V rechargeables. Li-ion chemistry (used here) typically offers higher energy density than the NiMH chemistry found in some other rechargeable 9V batteries. Check your device's manual for compatible chemistries before switching.
Ready to stop replacing single-use 9V batteries? Shop the Delipow 9V 800mAh rechargeable battery at RAM Electronics and pair it with a compatible 9V charger for reliable, reusable power.