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Authentic Grade A Cells

Trusted lithium-ion cells selected for serious DIY builds.

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Fast U.S. order processing from our Florida location.

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18650 Battery Cells
21700 Battery Cells
21700 Battery Cells
AWithZ Spot Welders
Accessories
BMS (Battery Management System)
BMS (Battery Management System)

EVE 30PL 18650 3000mAh 60A Tabless Cell

High-power 18650 cell for demanding DIY builds.

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Tenpower 50XG 21700 5000mAh 90A Tabless Cell

High-current 21700 performance cell in stock.

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18650 Battery Cells

Fast U.S. shipping from Florida. Delivery in 1 to 4 days.

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21700 Battery Cells

High-performance 21700 cells for serious battery projects.

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AWithZ Spot Welders

Precision welders for nickel, copper sandwich, and DIY pack assembly.

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Nickel, Copper, and DIY Accessories

Strips, cases, tools, and parts for cleaner battery builds.

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21700 Cells

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Two EVE INR21700-50PL 5000mAh lithium-ion battery cells, upright and side viewEVE 50PL 21700 5000mAh 70A Tabless Lithium-Ion Battery Cell
$6.15 USD
EVE 50PL 21700 5000mAh 70A Tabless Lithium-Ion Battery CellEVE
2 reviews
Two Ampace 21700 A4N21 4000mAh lithium-ion battery cells, upright and side viewAmpace 21700 A4N21 4000mAh lithium-ion battery cell, upright front view
$4.45 USD
Ampace JP40 21700 4000mah 70A Battery - Tabless CellAmpace
12 reviews
Two Reliance RS50 21700 5000mAh 70A tabless lithium-ion battery cells, front and side viewReliance 21700 RS50 5000mAh 70A CCC Lithium-Ion Battery Tabless Cell - High Performance
$6.99 USD
Reliance 21700 RS50 5000mAh 70A CCC Lithium-Ion Battery Tabless Cell - High PerformanceReliance
No reviews
Two Reliance RS50 21700 5000mAh 70A tabless lithium-ion battery cells, upright and side viewReliance RS50 21700 5000mAh 70A tabless lithium-ion battery cell, angled side view
$6.25 USD
TENPOWER 50XG 21700 5000 mAh 90A Battery – Tabless CellTENPOWER
No reviews
Two LG INR21700-45D 4400mAh lithium-ion battery cells, upright and side viewBAK 45D 21700 - 4500mah 60A - Premium A04 Tabless
$5.75 USD $8.95 USD
BAK 45D 21700 - 4500mah 60A - Premium A04 TablessBAK
2 reviews
EVE 40PL 21700 4000mAh 70A Battery - Tabless CellEVE 40PL 21700 4000mAh 70A Battery - Tabless Cell
$4.45 USD $7.99 USD
EVE 40PL 21700 4000mAh 70A Battery - Tabless CellEVE
2 reviews
EVE INR21700 58E 5700mAh 16.8A - Battery CellEVE INR21700 58E 5700mAh 16.8A - Battery Cell
$4.95 USD
EVE INR21700 58E 5700mAh 16.8A - Battery CellEVE
No reviews
Samsung 50S 21700 5000mAh 25A BatterySamsung 50S 21700 5000mAh 25A Battery
$5.99 USD $7.99 USD
Samsung 50S 21700 5000mAh 25A BatterySamsung
6 reviews
EVE 50E 21700 5000mAh 15A BatteryEVE 50E 21700 5000mAh 15A Battery
$3.95 USD
EVE 50E 21700 5000mAh 15A BatteryEVE
3 reviews
EVE 40P 21700 4000mAh 50A BatteryEVE 40P 21700 4000mAh 50A Battery
$3.35 USD $6.99 USD
EVE 40P 21700 4000mAh 50A BatteryEVE
1 review
Ampace JP50 21700 5000mAh 60A Battery – Premium High-Current CellAmpace JP50 21700 5000mAh 60A Battery – Premium High-Current Cell
$6.99 USD
Ampace JP50 21700 5000mAh 60A Battery – Premium High-Current CellAmpace
No reviews
Two Amprius 21700 50Q 5000mAh tabless battery cells, upright and side viewAmprius 21700 50Q 5000mAh 60A tabless battery cell, side view
$7.99 USD
Amprius INR21700 50Q 60A Tabless Battery Cell – 5000mAh High Performance (60A)Amprius
No reviews

18650 Cells

Two Ampace INR18650-JP30PM 3000mAh lithium-ion battery cells, upright and side viewAmpace INR18650-JP30PM 3000mAh lithium-ion battery cell, upright front view
$7.25 USD
Ampace JP30P1 18650 3000mah 56A Battery Cell - Tabless CellAmpace
7 reviews
Two Amprius SA110 18650 4000mAh lithium-ion battery cells, upright and side viewThree Amprius SA110 18650 4000mAh lithium-ion battery cells, terminal view
$7.99 USD
Amprius SA110 12A 18650 Battery Cell – 4000mAh Ultra High CapacityAmprius
No reviews
EVE 25P 18650 Battery – 2500mAh, 20AEVE 25P 18650 Battery – 2500mAh, 20A
$2.65 USD
EVE 25P 18650 Battery – 2500mAh, 20AEVE
3 reviews
EVE 26V 18650 2550mAh 7.5A BatteryEVE 26V 18650 2550mAh 7.5A Battery
$2.35 USD $3.99 USD
EVE 26V 18650 2550mAh 7.5A BatteryEVE
2 reviews
EVE 30P 18650 3000mAh 30A Battery CellEVE 30P 18650 3000mAh 30A Battery Cell
$3.49 USD
EVE 30P 18650 3000mAh 30A Battery CellEVE
No reviews
Two EVE INR18650/30PL 3000mAh lithium-ion battery cells, upright and side viewEVE 30PL 18650 3000mAh 60A Battery Cell - Tabless
$6.75 USD
EVE 30PL 18650 3000mAh 60A Battery Cell - TablessEVE
2 reviews
EVE 33V 18650 3200mAh 10A BatteryEVE 33V 18650 3200mAh 10A Battery
$2.69 USD $5.99 USD
EVE 33V 18650 3200mAh 10A BatteryEVE
1 review
EVE 35V 18650 3500mAh 10.2A BatteryEVE 35V 18650 3500mAh 10.2A Battery
$2.95 USD
EVE 35V 18650 3500mAh 10.2A BatteryEVE
2 reviews
Samsung 25R 18650 Cell – 2500mAh 20A BatterySamsung 25R 18650 Cell – 2500mAh 20A Battery
$4.50 USD
Samsung 25R 18650 Cell – 2500mAh 20A BatterySamsung
No reviews
Samsung 30Q 18650 3000mAh 15A BatterySamsung 30Q 18650 3000mAh 15A Battery
$4.65 USD
Samsung 30Q 18650 3000mAh 15A BatterySamsung
No reviews
Samsung 35E 18650 3500mAh 8A BatterySamsung 35E 18650 3500mAh 8A Battery
$4.89 USD $5.99 USD
Samsung 35E 18650 3500mAh 8A BatterySamsung
No reviews
Sony | Murata VTC5D 18650 2800mAh 25A BatterySony | Murata VTC5D 18650 2800mAh 25A Battery
$3.15 USD $7.95 USD
Sony | Murata VTC5D 18650 2800mAh 25A BatterySony
No reviews

AWithZ Spot Welders

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AWithZ UF20B Welding Pen Tips (1 Set / Pair)
$5.95 USD
AWithZ UF20B Welding Pen Tips (1 Set / Pair)AWithZ
No reviews
AWithZ WP158 Welding Pen Head (1 Set)
$7.99 USD
AWithZ WP158 Welding Pen Head (1 Set)AWithZ
No reviews
Nickel-Plated Steel Strip for Battery Spot Welding – 5m Roll (Multiple Sizes)
From $8.95 USD
Nickel-Plated Steel Strip for Battery Spot Welding – 5m Roll (Multiple Sizes)DIY500AMP.COM
No reviews
Pure Copper T2 Strip for Battery Spot Welding – 5m Roll (Multiple Sizes)Pure Copper T2 Strip for Battery Spot Welding – 5m Roll (Multiple Sizes)
From $11.95 USD
Pure Copper T2 Strip for Battery Spot Welding – 5m Roll (Multiple Sizes)DIY500AMP.COM
No reviews
Pure Nickel Strip Roll for Battery Spot WeldingPure Nickel Strip Roll for Battery Spot Welding
From $14.99 USD
Pure Nickel Strip Roll for Battery Spot WeldingDIY500AMP.COM
No reviews
Nickel-Plated Copper 0.2 × 10 mm (5 Meters) – High Conductivity T2 Copper for Battery BuildingNickel-Plated Copper 0.2 × 10 mm (5 Meters) – High Conductivity T2 Copper for Battery Building
From $18.95 USD
Nickel-Plated Copper 0.2 × 10 mm (5 Meters) – High Conductivity T2 Copper for Battery BuildingDIY500AMP.COM
No reviews
Flux for Copper-to-Copper Spot Welding (100g)Flux for Copper-to-Copper Spot Welding (100g)
$19.95 USD
Flux for Copper-to-Copper Spot Welding (100g)DIY500AMP.COM
No reviews
AWihZ Base Angled ABS Stand for AWithZ P20B/ P30C / P60F Spot WeldersAWihZ Base Angled ABS Stand for AWithZ P20B/ P30C / P60F Spot Welders
$19.99 USD
AWihZ Base Angled ABS Stand for AWithZ P20B/ P30C / P60F Spot WeldersDIY500AMP.COM
No reviews
Kerpu CP01 5000mAh Pocket Spot Welder – Made by AWithZ | Affordable Entry-Level Portable Welding MachineKerpu CP01 5000mAh Pocket Spot Welder – Made by AWithZ | Affordable Entry-Level Portable Welding Machine
$24.95 USD
Kerpu CP01 5000mAh Pocket Spot Welder – Made by AWithZ | Affordable Entry-Level Portable Welding MachineAWithZ
No reviews
AWihZ Base Angled ABS Stand for AWithZ P90C/ P120D Spot WeldersAWihZ Base Angled ABS Stand for AWithZ P90C/ P120D Spot Welders
$29.99 USD
AWihZ Base Angled ABS Stand for AWithZ P90C/ P120D Spot WeldersDIY500AMP.COM
No reviews
AWithZ H5 Mini Spot Welder – 5000 mAh Battery, 0–0.35 mm Welding, TFT DisplayAWithZ H5 Mini Spot Welder – 5000 mAh Battery, 0–0.35 mm Welding, TFT Display
$59.99 USD $69.99 USD
AWithZ H5 Mini Spot Welder – 5000 mAh Battery, 0–0.35 mm Welding, TFT DisplayAWithZ
No reviews
AWithZ WP158 Spot Welding Pens – Premium Copper Handheld Electrodes for Battery BuildingAWithZ WP158 Spot Welding Pens – Premium Copper Handheld Electrodes for Battery Building
$59.99 USD
AWithZ WP158 Spot Welding Pens – Premium Copper Handheld Electrodes for Battery BuildingAWithZ
No reviews

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