The Power Station

From the description (translated from French): In the middle of the vast meadows is a place sought after by many brave mice. This place is the powerhouse. A loaner car battery and its jumper cables have been retooled and used to recharge and power the weapons of the brave explorers. But this power is a gamble, the powerhouse is known to strike back in shocking ways. Seek power at your own risk, and use the charge wisely.