First Look: Vruzend 1.6 Lithium Ion 18650 Battery System
JLCPCB Prototype for $2(Any Color): https://jlcpcb.com
Building a simple 4S1P lithium ion pack using the Vruzend 1.6 battery building kit.
NEW! Vruzend V1.6 DIY Solderless 18650 Battery Holder No Spot Weld Colour Coded #Vruzend https://ebay.us/eadxL3