Battery Specification: Voltage: 40V. Capacity: 4000mAh. Watt: 160Wh Wide compatibility: IEFUU Compatible with Kobalt 40 Volt max Battery KB240-06 KB2540C-06 KB640-03 KB440-03 KPM1040A-03 KM-1640-06 KM4040-06 KB640-06 KB245-06 KB240C-06,Compatible with Kobalt all 40V team tools including blower,leaf blower, backpack blower, trimmer, hedge trimmer, and lawn mower,chainsaw High Performance: With 2 times more power than the original 2.0Ah, our batteries run longer Safety & Worth Buying:Built-in overcharge, overdischarge, overvoltage, overcurrent and overheating protections ensure safer use with your products, delivers fade-free power under extreme jobsite conditions What you get & Service: 1x 40v battery 4.0ah

4.0Ah Battery IEFUU Compatible with Kobalt 40V MAX Battery Model:

KB 640-06 KB 640-03 KB 540-06 KB 440-06 KB 440-06‎ KB 440-03 KB 540C-06 KB 440C-06 KB 340-06 KB 245-06

KB 240-06 KB 240-03 KB 2540C-06 KB 240C-06‎ KB 240C-06 KB 340C-06 2910003-RC KB K0140-06 KB 540C-06 1302703 etc.

IEFUU Compatible with Kobalt All 40 Volt Power Tools

Compatible with 40V mower models: KM 2041B-06, KPM 1040A-03, KM-1640-06, KM1940-07, KM 4040-06,etc;

Compatible with all 40V Blowers, Trimmers & Edgers, Chainsaws & Pole Saws: KLB 1040A-03, KST 1040B-03, KCS 1040A-03, KMS 1040A-03, KHT 1040A-03, KPS 1040A-03, KHB 3040-06,etc.