Product information

Charge your mobile
with AA batteries

Charge your devices using stored energy from any four AA batteries via the DC 5 V USB Output function. Four eneloop AA batteries will charge a smartphone battery to about 50%*. You can use a mix of four AA batteries of any type (even dry batteries) to charge your phone in an emergency or top up personal devices such as wireless headphones on the go. To use, connect your device via USB cable and press the PUSH DC OUT button until all LEDs on the front turn green. Press again to cancel the DC output.

Note: Do not install batteries other than eneloop and eneloop pro in BQ-CC87 except when using DC 5 V USB Output. Do not charge dry batteries. USB charging cable to connect a compatible device is not included. When the DC 5 V USB Output is used, four LEDs on the charger blink green every two seconds.

* Estimate when recharging a 3.7 V / 2700 mAh smartphone battery with 4x eneloop AA batteries. Varies depending on the environment and battery condition.

Individual Charge Control and Smart Charge

BQ-CC87 features Individual Charge Control technology. It can individually charge one, two, three, or four eneloop or eneloop pro batteries in AA/AAA sizes in any combination. Smart Charge detects when each individual battery is fully charged and shuts off power to that slot before battery overflow, protecting and extending battery life.

Note: Charging time is approximate and varies depending on temperature and battery condition.

DC 5 V USB input lets you charge on the go

BQ-CC87 makes an ideal traveling companion thanks to DC 5 V USB input. You can use your laptop's USB port, a power bank, your phone's AC adapter, or the DC 5 V outlet in your car or airplane seat to charge your eneloop batteries. Since there are always more devices to charge than AC outlets, being able to charge eneloop and other devices with an aftermarket multi-port AC adapter is handy, especially when you travel.

Note: USB power adapter not included.

LEDs show remaining capacity and charging progress

BQ-CC87 measures the voltage of each individual battery to estimate its remaining charge. Four separate 3-color LEDs indicate this information to give you an idea of each battery's charging progress. A red light means the battery is 20% or less charged, yellow means it is between 20% and 80% charged, and green means the battery is 80% or more charged. When the light turns off, the battery is fully charged and ready to use.

Battery checker with LED indicators

When a battery is nearing end of life, the light above its slot flashes yellow. Red flashes mean you've inserted a battery incorrectly or installed a dry battery by mistake (the safety system shuts off the power and prevents short circuits in both cases). If the light still flashes red after checking the above, it's time to replace the battery.

Safety System

Safety Timer Protection
Temperature Safety Timer
Overheat Protection
Hardware Protection
Overload Protection
Short-Circuit Protection
Dry Battery Detection
Reverse Polarity Protection

Supported battery combinations

Individual Charge Control allows you to recharge any combination of up to four AA/AAA eneloop and eneloop pro, even single batteries or a mix with different sizes and capacities.

AA size 1-4 pcs
AAA size 1-4 pcs

Using your battery charger

Step 1

Insert the batteries into the slots according to the indicated polarity (+/-). When inserting a battery, you should fit the battery's negative terminal end first and then gently press the top of the battery into the slot. Pull out the positive terminal end first when removing the battery.

Note: Inserting the positive (+) terminal end of AAA batteries first may risk damaging the charger.

Step 2

Connect the charger to a compatible USB power adapter using the supplied USB charging cable. Plug in the USB power adapter to an AC 100–240 V outlet. It's also possible to charge via a computer's DC 5 V USB port.

Note: USB power adapter not included.

Step 3

The four LED indicators above the slots flash green from left to right for about three seconds while the charger checks the battery status. The remaining capacity of each installed battery is then separately indicated using three different colors (red: less than 20% charged, yellow: 20–80% charged, and green: more than 80% charged). If a battery is approaching the end of its life, the light above its slot flashes yellow. If an invalid battery is inserted or a battery is installed incorrectly, the light above its slot flashes red, and power to that slot is shut down to prevent damage to the battery and charger. If the battery is compatible and installed correctly, and the light flashes red, it has reached the end of its life and cannot be charged.

Step 4

When a battery is charged, the light above its slot turns off. Smart Charge detects its voltage and stops charging before overflow to protect and extend battery life. 

Step 5

Disconnect the charging cable and USB power adapter from the AC outlet, or remove the charging cable from your device's DC 5 V USB port, and disconnect the cable from the charger. Remove the batteries as soon as possible after charging.



DC 5 V USB input (USB Type A to USB Micro-B charging cable included)

Note: AC adapter not included. 


DC 5 V USB Output

Charging time

eneloop: Approx. 2.25 hours (1–2x AA), 4.5 hours (3–4x AA)
eneloop pro: Approx. 3 hours (1–2x AA), 6 hours (3–4x AA)

Note: Charging times are approximate and may vary depending on the temperature and battery condition.


4-LED indicator (3 colors)


AA: 1 to 4 eneloop or eneloop pro batteries
AAA: 1 to 4 eneloop or eneloop pro batteries

Note: Charger accepts up to four AA/AAA batteries in any combination.

Charge control

Individual Charge Control (Individually charges any combination of 1–4x AA/AAA batteries)

Safety charge

Smart Charge (Detects battery voltage and stops charging before overflow)


66 (W) x 85 (L) x 28.5 (H) mm


85 g (Excluding USB cable)

Charging time estimates at room temperature


Charging time
1–2 pcs.

Charging time
3–4 pcs.


2450–2550 mAh

3 hours

6 hours

1900–2000 mAh

2.25 hours

4.5 hours

950–1000 mAh

1.25 hours

2.5 hours


900–950 mAh

2.25 hours

4.5 hours

750–800 mAh

2 hours

4 hours

550–650 mAh

1.5 hours

3 hours

Note: Charging times shown in the table are approximate and can vary depending on temperature and battery status.

Sales by country / region

Brazil, CIS, Europe, United States