DIY Battery Building

Get everything you need for DIY battery building—kits, tools, and components. Whether you're working on a DIY lithium ion battery pack or a LiFePO4 setup, build custom power solutions with confidence and ease.

120mm (4.72")-630mm (24.80") Heat Shrink

From $1.45

Real Cell 26650 3.2V 3400mAh Battery Cell - IFR26650 LFP

From $4.50

Samsung 30Q 18650 3000mAh 15A Battery - INR18650-30Q

From $4.51

EVE 25P 18650 2500mAh 20A Battery Cells

From $4.99

Samsung 25R 18650 2500mAh 20A Battery - INR18650-25R

From $4.99

EVE 33V 18650 3200mAh 10A Battery

From $5.15

Lishen 21700 4000mAh 35A Battery

From $6

K2 26650 3.2V 3800mAh LiFePO4 Battery Cells

From $8

LI-ION Battery Management Systems with Balancing Leads

From $16.99

250 pcs Heat Shrink Wire Connector Kit

$19.99

LiFePO4 Battery Management System with Balancing Leads

From $24.99

Smart (Bluetooth) LiFePO4 Battery Management Systems with Bluetooth Dongle

From $45.99

Smart (Bluetooth) LI-ION Battery Management Systems with Bluetooth Dongle and Balancing Leads

From $49.99

On sale

801B Battery Spot Welder 11.6 KW Storage Pulse Welding Machine, Mini Portable Spot Welding Equipment for 18650, 14500 Lithium Battery Pack Building

$199.99 $230

Sunco Welder 801A

$220.99

737G+ Battery Spot Welder, Pulse Welding Machine

$299

120mm (4.72")-630mm (24.80") Heat Shrink

$1.45

Real Cell 26650 3.2V 3400mAh Battery Cell - IFR26650 LFP

$4.50