BiXPower 12.6V 3A Lithium-Ion Battery Charger for 10.8V / 11.1V 3S Batteries
Compact, UL Listed lithium-ion battery charger with automatic charging indication, universal AC input, and a 4.0 x 1.7mm DC charging connector.
The BiXPower ACC-12V3AC25 is a compact AC battery charger designed specifically for compatible 10.8V and 11.1V nominal lithium-ion battery packs using three lithium-ion cells connected in series (3S).
It provides a maximum charging voltage of 12.6V DC and a maximum charging current of 3A, making it suitable for compatible 3S lithium-ion battery packs that accept this charging voltage and current.
With its compact housing, lightweight design, 100V–240V universal AC input, UL Listed safety marking, and red/green charging indicator, this charger offers a convenient way to recharge compatible lithium-ion battery packs at home, in the office, or while traveling.
Important: This is a Lithium-Ion Battery Charger, Not a Regular 12V Power Adapter.
This product is designed for charging compatible 3S lithium-ion batteries with a maximum charging voltage of 12.6V. It should not be used as a general-purpose 12V DC power supply or with incompatible battery chemistries.
Key Features & Benefits
- Designed for Lithium-Ion Batteries: Charges compatible 3S battery packs with 10.8V or 11.1V nominal voltage.
- 12.6V Charging Output: Provides the appropriate maximum charging voltage for standard 3S lithium-ion packs.
- 3A Maximum Charging Current: Suitable for battery packs rated to accept up to 3A charging current.
- Red/Green LED Indicator: Provides a simple visual indication of charging status.
- UL Listed: Safety-certified charger with UL Listed marking and CE compliance marking.
- Universal AC Input: Supports 100V–240V AC, 50/60Hz.
- Compact Size: Only 105 x 50 x 32mm (approximately 4 x 2 x 1.3 inches).
- Lightweight: Approximately 185g (6.5 oz).
- 4.0 x 1.7mm DC Connector: Male barrel-style charging plug.
- Compatible BiXPower Batteries: Designed for compatible iP100 and iP150 battery models.
Designed for 10.8V / 11.1V Lithium-Ion Batteries
Rechargeable lithium-ion battery packs are often identified by their nominal voltage rather than their fully charged voltage.
A standard lithium-ion cell typically has a nominal voltage of approximately 3.6V or 3.7V and a full-charge voltage of 4.2V.
When three cells are connected in series, the battery pack is commonly called a 3S lithium-ion battery.
Understanding 3S Lithium-Ion Battery Voltage
- 3 cells in series (3S)
- Nominal battery voltage: 10.8V or 11.1V
- Maximum charging voltage: 4.2V x 3 = 12.6V
- Maximum charger output current: 3A
This charger is suitable for compatible 3S lithium-ion configurations, including certain 3S3P and 3S4P battery packs, provided the battery's charging-current rating, charging port, polarity, and battery management system are compatible.
The number of cells connected in parallel does not by itself determine the allowable charging current. Always verify the battery manufacturer's maximum charging-current specification.
Compatible with BiXPower iP100 and iP150 Batteries
The ACC-12V3AC25 charger is designed for compatible BiXPower iP100 and iP150 series lithium-ion batteries and other rechargeable lithium-ion battery packs that accept 12.6V charging input with a maximum charging current of 3A.
Before purchasing, confirm that your battery has a matching charging connector and is designed to accept this charger.
4.0 x 1.7mm Male DC Charging Connector
The charger's DC output cable terminates in a 4.0mm outer diameter x 1.7mm inner diameter male barrel connector.
- Connector Outer Diameter (OD): 4.0mm
- Connector Inner Diameter (ID): 1.7mm
- Connector Type: Male DC barrel plug
- Charging Voltage: 12.6V DC maximum
- Charging Current: Up to 3A
Verify the battery's charging connector dimensions and polarity before connecting the charger. A connector that physically fits does not necessarily indicate electrical compatibility.
4.0mm OD x 1.7mm ID male DC charging connector.
Red and Green LED Charging Indicator
The charger includes an LED indicator that changes color based on the charging current.
| LED Indicator |
Meaning |
| Red |
Output charging current is greater than 300mA, indicating active battery charging. |
| Green |
Output current is 300mA or less, generally indicating that charging has reached its completion stage. |
The LED color is based on output current. A green light may also appear when the battery is disconnected or not accepting charging current, so it should not be treated as a precise battery-capacity measurement.
UL Listed Battery Charger
The ACC-12V3AC25 features a UL Listed safety marking and CE compliance marking, as shown on the charger's rating label.
The compact charger is designed for indoor use with a compatible 100V–240V AC power source.
For safe charging, use only with compatible rechargeable lithium-ion battery packs equipped with appropriate battery protection circuitry. Do not use the charger with damaged, swollen, overheated, or otherwise unsafe batteries.
Charge batteries on a suitable nonflammable surface, keep the charger ventilated, and follow the battery manufacturer's charging instructions.
Technical Specifications
| BiXPower Model |
ACC-12V3AC25 |
| Product Type |
Lithium-Ion Battery AC Charger |
| Battery Chemistry |
Rechargeable Lithium-Ion (3S) |
| Battery Nominal Voltage |
10.8V / 11.1V |
| AC Input |
100V–240V AC, 50/60Hz |
| Maximum Charging Voltage |
12.6V DC |
| Maximum Charging Current |
3A |
| Maximum Rated DC Output Power |
37.8W (12.6V x 3A) |
| DC Output Connector |
4.0 x 1.7mm Male Barrel Plug |
| LED Charging Indicator |
Red / Green |
| Charging Indicator Threshold |
300mA |
| Dimensions |
105 x 50 x 32mm (Approx. 4 x 2 x 1.3 inches) |
| Weight |
185g (6.5 oz) |
| Color |
Black |
| Safety Markings |
UL Listed, CE |
| Compatible BiXPower Batteries |
Compatible iP100 / iP150 Series |
How to Charge Your Lithium-Ion Battery
-
Check Battery Compatibility: Confirm that the battery is a rechargeable 3S lithium-ion pack rated for 12.6V charging, accepts up to 3A, and has the correct charging connector and polarity.
-
Connect the Charger: Insert the DC charging plug into the battery's designated charging input.
-
Connect AC Power: Connect the AC power cord to the charger and plug it into a suitable 100V–240V AC outlet.
-
Monitor the LED: The indicator normally turns red during active charging when current exceeds 300mA.
-
Finish Charging: When charging current decreases to 300mA or below, the LED turns green. Follow the battery manufacturer's instructions for disconnecting the charger.
Frequently Asked Questions
Is this a 12V power adapter or a lithium-ion battery charger?
It is a lithium-ion battery charger. It is designed to charge compatible 10.8V / 11.1V nominal 3S lithium-ion batteries to a maximum voltage of 12.6V. It is not intended as a regular 12V DC power adapter.
Why is the charger rated 12.6V when my battery says 11.1V?
11.1V is the nominal voltage of a typical 3S lithium-ion battery. Its fully charged voltage is 12.6V, or 4.2V per cell.
Can I charge a 10.8V lithium-ion battery?
Yes, if it is a compatible 3S lithium-ion battery designed for a 12.6V maximum charging voltage and the charger's connector, polarity, and current rating match the battery requirements.
Can I charge a 3S3P or 3S4P battery pack?
Yes, if the pack's battery management system and manufacturer specifications permit 12.6V charging at up to 3A.
Can this charger charge LiFePO4 batteries?
No. Standard LiFePO4 battery packs use different charging-voltage requirements. Use a charger specifically designed for the battery chemistry and configuration.
Can I charge a lead-acid battery?
No. This charger is designed for compatible lithium-ion batteries, not lead-acid batteries.
What does the red LED mean?
Red indicates that the charging output current is greater than 300mA.
What does the green LED mean?
Green indicates that the output current is 300mA or less. This normally occurs near the end of charging, but it may also occur when no battery is connected.
Can I use this charger internationally?
The charger accepts 100V–240V AC, 50/60Hz input. A suitable wall plug adapter or compatible AC power cord may be needed depending on the country.
Will this charger work with BiXPower iP100 and iP150 batteries?
Yes, with compatible iP100 and iP150 battery models that accept this charger's 12.6V, 3A charging output and 4.0 x 1.7mm connector.
Package Contents
- 1 x BiXPower ACC-12V3AC25 12.6V 3A Lithium-Ion Battery Charger
- 1 x AC Power Cord
Lithium-ion batteries are not included.
Compact, Convenient Charging for 3S Lithium-Ion Batteries
The BiXPower ACC-12V3AC25 provides a compact and convenient charging solution for compatible 10.8V / 11.1V lithium-ion battery packs. Featuring a maximum 12.6V charging voltage, 3A output, UL Listed safety marking, red/green charging indicator, and 100V–240V universal AC input, it is a practical charger for compatible BiXPower iP100, iP150, and other 3S lithium-ion batteries.
