Stop throwing away empty 9Vs! These batteries can be recharged over a thousand times!
We've been using these exact Rechargeable Li-ion 9V Batteries in our fleet of Playable Battle Robots, Party Robots, and Workshop Robots for years now and are happy to recommend them to our customers as a huge upgrade over regular alkaline 9V batteries.


- Lithium-ion batteries have no memory effect, a feature that ensures your robot won't slowly discharge on your shelf. It will be ready to go when you are!
- These batteries have been sourced specifically because they recharge through the top contacts (not through a separate side cable) eliminating the need to remove them from your robot for recharging!*
- The maximum output current of these batteries is significantly higher than other brands, capable of powering robots with lifter arms.
Used in Viper Robots:

- These are the 9V batteries recommended for our Viper kits, ensuring compatibility and providing over an hour of driving time. (Double that by using a dual battery setup!)
- Can even power a Lifter Add-On for well over 15 minutes.
*For charging inside the robot, remember to grab a 9V Charger Adapter Cable that plugs directly into the 9V Charger.
Used in Playable Battle Robot Kits:

- Makes recharging as easy as turning off your robot!
- No more replacing your Playable Battle Robot's battery every time you want to play with it! Save on battery costs!
*Wooden kits before Dec 2024 can be upgraded easily with a PBRK 9V Charge Switch.
*Wooden kits after Dec 2024 all include everything needed to plug directly into the 9V Charger.
Battery Specifications:
Voltage: 8.2V-8.4V (This is the standard voltage of all 9V lithium-ion rechargeable batteries.)
Capacity: 600mAh (5400mWh)
Weight: 25.0grams (0.88oz)
Short-circuit protection: Automatically cuts off the output to prevents overheating and battery draining.
Low-voltage protection: Automatically shuts off when the battery is considered "dead". Compare to regular lipoly batteries which are irreparably damaged when over-discharged.
These Li-ion batteries have no memory effect and will not discharge themselves while not in use. Improved low self-discharge maintains 75% of capacity after 3 years of non-use.
Note: The charger comes with a micro-USB cable, but requires a USB wall adapter (not included).
EBL 9V Battery Charger:
Dual-Bay Charging: Charge one or two Li-ion 9V's at the same time.
Smart LED Indicators: Red light indicates charging, while green signifies a fully charged battery.
Safety Protection: The EBL 9V Li-ion Battery Charger protects against overload, overheating, over-current, over-voltage, and short circuits for a secure charging experience.