25.2V 3A 5A Battery Charger Massage Gun Tool Charge for D008 Pro F8 Pro M500 TT8 MM8 K30 MT66

# 25.2V 3A Lithium Battery Charger

## For 21.6V / 22.2V 6S Li-ion Battery Packs

This **25.2V 3A lithium battery charger** is designed for **6S lithium-ion and lithium-polymer battery packs** with a full-charge voltage of **25.2V**.

It features stable CC/CV charging, LED status indication, multiple safety protections and a **DC 5.5×2.5mm center-positive connector**.

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## Main Specifications

* Output Voltage: DC 25.2V
* Maximum Current: 3A
* Maximum Power: 75.6W
* Input Voltage: AC 100–240V, 50/60Hz
* Charging Mode: CC/CV
* Connector: DC 5.5×2.5mm
* Polarity: Center Positive
* LED Indicator: Red / Green
* Color: Black

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## Compatible Batteries

Suitable for:

* 21.6V 6S Li-ion battery packs
* 22.2V 6S Li-ion battery packs
* 22.2V 6S LiPo battery packs
* 6S 18650 battery packs
* 6S 21700 battery packs
* Custom 6S lithium battery packs with BMS

A 6S lithium battery reaches approximately **25.2V when fully charged**.

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## DC Connector

* Outer Diameter: 5.5mm
* Inner Diameter: 2.5mm
* Polarity: Center Positive (+)
* Outer Sleeve: Negative (-)

Please check the connector size and polarity before ordering.

**DC 5.5×2.1mm and DC 5.5×2.5mm are different sizes.**

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## Smart CC/CV Charging

The charger uses a two-stage charging process:

* Constant Current: Provides stable charging current
* Constant Voltage: Maintains 25.2V while the current gradually decreases

This helps charge compatible batteries efficiently and safely.

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## LED Indicator

* Red Light: Charging
* Green Light: Fully charged or standby

Disconnect the charger after charging is complete.

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## Safety Protection

Built-in protection functions include:

* Overvoltage protection
* Overcurrent protection
* Short-circuit protection
* Overheating protection
* Overcharge protection

For safer use, the battery pack should have a suitable BMS.

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## Estimated Charging Time

Approximate charging time:

* 6Ah Battery: About 2.4 hours
* 10Ah Battery: About 4 hours
* 15Ah Battery: About 6 hours
* 20Ah Battery: About 8 hours

Actual charging time may vary depending on battery condition, remaining capacity and BMS settings.

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## Suitable Applications

Can be used for compatible:

* Electric scooters
* Portable equipment
* Power tools
* Cleaning equipment
* LED devices
* Robotics projects
* DIY battery packs
* Rechargeable electronics

Compatibility depends on voltage, battery chemistry, charging current, connector size and polarity.

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## Not Compatible With

Do not use with:

* 21V 5S lithium battery packs
* 29.4V 7S lithium battery packs
* 24V / 25.6V LiFePO4 batteries
* Lead-acid batteries
* NiMH or NiCd batteries
* Reverse-polarity charging ports
* Batteries that cannot accept 3A charging current

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## Package Includes

* 1 × 25.2V 3A Lithium Battery Charger
* 1 × AC Power Cable

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## Please Confirm Before Ordering

Please check:

1. Battery type: Li-ion or LiPo
2. Battery configuration: 6S
3. Full-charge voltage: 25.2V
4. Charging current support: 3A
5. Connector size: DC 5.5×2.5mm
6. Polarity: Center positive

Using an incorrect charger may damage the battery or equipment.

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## Important Notice

* Do not charge damaged or swollen batteries.
* Use in a dry and ventilated area.
* Do not cover the charger during operation.
* Keep away from water and fire.
* Do not reverse the polarity.
* Disconnect after charging.
* Do not open or modify the charger.