3.7V 4000mAh Lithium Polymer Battery

This new XINJ 3.7V 4000mAh lithium polymer battery is ready to power your next DIY electronics project. The battery features clearly marked positive and negative leads and a built-in protection circuit board, ensuring safe operation for various hobbyist applications. If you are looking to bring a project back to life or need a dependable power cell, this is a great find. Dimensions are approximately 6cm x 9cm. Note: 1 for $5, 2 for $9. Pickup at Bur Oak @ McCowan Markham everyday, at 401 @ Markham road Scarborough most Fridays around 12:30 - 1:30pm, at 70 Queens Wharf Rd, downtown Toronto some Sundays around 10am -12:30pm.