Amazon.com: Ecologic Mart Lithium Ion Batteries, 3.7 Volt Rechargeable Battery, 1200mAh LiPo Battery, Reading Book Light Battery Replacement, 103040 Type with Micro JST 1.25mm 2Pin Male Connector : Health & Household
3.7-4.2v 28mah Lipo Battery Ultra micro 0.84g
Best LiPo Battery for Whoop & Micro Quad (1S, 2S, 3S, 4S 250-650mAh) - Oscar Liang