SEESII Upgraded 1PCS 21V 4000mAh Replacement Battery, Compatible with SEESII Tools, Impact Wrench, Mini Chainsaw

This is a matching battery for Seesii Cordless Tool(Note:If you want to use it on other brands of products, please confirm the battery interface before purchasing) | Battery capacity: 4000mAh | Voltage: 21V | Working time: 40-60min(depending on product power)