DIY500AMP.COM
DIY500AMP.SHOP is your go-to online store for premium DIY battery-building supplies, high-performance cells, tools, and accessories all with uncomp
DIY500AMP.COM
All products
All
21700 Battery Cells
BMS (Battery Management System)
Accessories
18650 Battery Cells
EVE - 18650 Collection
Samsung - 18650 Collection
SONY - 18650 Collection
Molicel Alternatives - 18650 Cells
Ampace - 21700 Collection
Samsung - 21700 Collection
EVE - 21700 Collection
Molicel Alternatives - 21700 Cells
High Capacity (mah) - 18650
High Current (amps) - 18650
Value Cells - 18650
JiaBaiDa (JBD)
High Capacity (mah) - 21700
High Current (amps) - 21700
Value Cells - 21700
Battery Chargers
Custom Battery Packs
Sale
Spot Welders
Nickel / Copper Strips
AWithZ Spot Welders
Battery Packs for Drones/Jets/RC
Power Tools Batteries
Ampace - 18650 Collection
Amprius - 18650
Amprius - 21700
FEB - 21700
Samsung 18650
Samsung - 21700
TENPOWER - 21700
TENPOWER - 18650
Battery DIY Kits
Tabless Battery Cells
Battery Spot Welding Supplies
Milwaukee M18 Battery Rebuild Parts
RS60 21700 Battery Alternatives
Samsung 45T and 53G2 Alternatives

0.2mm T2 Pure Copper 2P Strip for 18650 & 21700 Battery Pack
USD 17.95

10 ml Multi-Metal Soldering Flux for Aluminum, Stainless Ste
USD 7.95

12V 7Ah Battery Case Holder with BMS & Nickel Strips – Fits
USD 9.99

1M Pure Nickel Strip 2P 0.15x27mm – High Purity 99.96% for 1
USD 8.99

2-Channel 18650 21700 Battery Capacity Tester with Internal
USD 11.99

21700 2P Direct Copper Busbar 0.3mm 200A | Spot Weld Paralle
USD 45.99

21700 Plastic Case + BMS PCBA for Makita 18V Li-ion Battery
USD 39.95

21700 PVC Heat Shrink Tube – Precut Battery Wrap 10 pcs
USD 0.99

2S2P 21700 Battery Kit - Copper Busbars, Tray & Optional Cel
USD 37.99

30-Cell 18650 Battery Case + PCB for Makita-Compatible DIY P
USD 39.95

304 Stainless Steel Strip Roll – 100 mm x 1000 mm | 0.1 mm /
USD 12.95

3S to 20S LED Battery Detection Board for Li-ion & LiFePO4 P
USD 8.99

3S2P 21700 Battery Kit - Copper Busbars, Tray & Optional Cel
USD 41.99

4-Slot 18650/21700 Tester Holder Assembly
USD 14.99

4S2P 21700 Battery Kit - Copper Busbars, Tray & Optional Cel
USD 45.99

5S2P 21700 Battery Kit - Copper Busbars, Tray & Optional Cel
USD 55.99

6S2P 21700 Battery Kit - Copper Busbars, Tray & Optional Cel
USD 56.99

7S2P 21700 Battery Kit - Copper Busbars, Tray & Optional Cel
USD 57.99

8S2P 21700 Battery Kit - Copper Busbars, Tray & Optional Cel
USD 61.99

AMASS XT90H Connector Pair with Insulating End Caps
USD 5.95

ANENG DM850 1999-Count Digital Multimeter – Yellow Boxed Set
USD 11.99

ATORCH 20A Battery Test Stand
USD 42.0

BL18120 15x21700 Battery Case + 50A BMS for Makita 18V (DIY
USD 75.99

Copper-Nickel 2P Battery Busbar Strip – 18650 / 21700 (3-Pie
USD 39.95