Labor Day Weekend Sale – Don’t Miss Out!

Celebrate Labor Day with huge savings on our top-quality batteries, spot welders, and DIY accessories. Whether you’re building, upgrading, or stocking up for your next project, now is the perfect time to grab the gear you need at unbeatable prices.

Shop now and power up your projects with DIY500AMP – your trusted store for performance and reliability.

Shop the Sale

Our collections

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

18650 Battery cells

"🚀 Fast US Shipping ! Delivery in 1-4 days!"

18650 Cells

21700 Battery Cells

"🚀 Fast US Shipping ! Delivery in 1-4 days!"

21700 Cells

Spot Welders

AWithZ

Models

DIY Accessories

"🚀 Fast US Shipping ! Delivery in 1-4 days!"

DIY Accessories

21700 Cells

View all
Save 63%
Ampace JP40 "LT Wrap" 21700 4000mah 70A Battery - Tabless CellAmpace JP40 "LT Wrap" 21700 4000mah 70A Battery - Tabless Cell
$3.65 USD $9.99 USD
Ampace JP40 "LT Wrap" 21700 4000mah 70A Battery - Tabless CellAmpace
12 reviews
Save 40%
EVE 50PL 21700 5000 mAh 125A Battery - TablessEVE 50PL 21700 5000 mAh 125A Battery - Tabless
$7.25 USD $11.99 USD
EVE 50PL 21700 5000 mAh 125A Battery - TablessEVE
2 reviews
Save 35%
BAK INR2170-45D – Premium A04 Grade (4560–4600mAh) | Fresh 2025 Batch | CCC Certified | Tabless DesignBAK INR2170-45D – Premium A04 Grade (4560–4600mAh) | Fresh 2025 Batch | CCC Certified | Tabless Design
$5.85 USD $8.95 USD
BAK INR2170-45D – Premium A04 Grade (4560–4600mAh) | Fresh 2025 Batch | CCC Certified | Tabless DesignBAK
2 reviews
Save 41%
EVE 40PL 21700 4000mAh 70A Battery - Tabless CellEVE 40PL 21700 4000mAh 70A Battery - Tabless Cell
$4.75 USD $7.99 USD
EVE 40PL 21700 4000mAh 70A Battery - Tabless CellEVE
2 reviews
Save 25%
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
Save 51%
EVE 50E 21700 5000mAh 15A BatteryEVE 50E 21700 5000mAh 15A Battery
$2.95 USD $5.99 USD
EVE 50E 21700 5000mAh 15A BatteryEVE
3 reviews
Save 43%
EVE 40P 21700 4000mAh 50A BatteryEVE 40P 21700 4000mAh 50A Battery
$3.95 USD $6.99 USD
EVE 40P 21700 4000mAh 50A BatteryEVE
1 review
Save 42%
EVE INR21700 58E 5700mAh 16.8A - Battery CellEVE INR21700 58E 5700mAh 16.8A - Battery Cell
$5.25 USD $8.99 USD
EVE INR21700 58E 5700mAh 16.8A - Battery CellEVE
No reviews
Save 42%
LG INR21700 M58T 5800mAh 12.5A High Capacity Battery Cell – Industrial GradeLG INR21700 M58T 5800mAh 12.5A High Capacity Battery Cell – Industrial Grade
$5.25 USD $8.99 USD
LG INR21700 M58T 5800mAh 12.5A High Capacity Battery Cell – Industrial GradeLG
No reviews
Save 21%
M50LT 21700 5000mah 14.4A Battery
$3.95 USD $4.99 USD
M50LT 21700 5000mah 14.4A BatteryLG
No reviews
Save 29%
Samsung 50G 21700 4900mAh 10A BatterySamsung 50G 21700 4900mAh 10A Battery
$4.25 USD $5.99 USD
Samsung 50G 21700 4900mAh 10A BatterySamsung
No reviews
Save 39%
Reliance 21700 RS40 4000mAh 70A Lithium-Ion Battery Tabless Cell - High PerformanceReliance 21700 RS40 4000mAh 70A Lithium-Ion Battery Tabless Cell - High Performance
$5.45 USD $8.99 USD
Reliance 21700 RS40 4000mAh 70A Lithium-Ion Battery Tabless Cell - High PerformanceReliance
No reviews

18650 Cells

Ampace JP30 18650 3000mah 56A Battery Cell - Tabless CellAmpace JP30 18650 3000mah 56A Battery Cell - Tabless Cell
$4.95 USD
Ampace JP30 18650 3000mah 56A Battery Cell - Tabless CellAmpace
7 reviews
Save 59%
EVE 25P 18650 Battery – 2500mAh, 20AEVE 25P 18650 Battery – 2500mAh, 20A
$2.45 USD $5.99 USD
EVE 25P 18650 Battery – 2500mAh, 20AEVE
3 reviews
Save 50%
EVE 26V 18650 2550mAh 7.5A BatteryEVE 26V 18650 2550mAh 7.5A Battery
$1.99 USD $3.99 USD
EVE 26V 18650 2550mAh 7.5A BatteryEVE
2 reviews
Save 62%
EVE 30P 18650 3000mAh 30A Battery CellEVE 30P 18650 3000mAh 30A Battery Cell
$2.99 USD $7.95 USD
EVE 30P 18650 3000mAh 30A Battery CellEVE
No reviews
Save 55%
EVE 33V 18650 3200mAh 10A BatteryEVE 33V 18650 3200mAh 10A Battery
$2.70 USD $5.99 USD
EVE 33V 18650 3200mAh 10A BatteryEVE
1 review
Save 51%
EVE 35V 18650 3500mAh 10.2A BatteryEVE 35V 18650 3500mAh 10.2A Battery
$2.95 USD $5.99 USD
EVE 35V 18650 3500mAh 10.2A BatteryEVE
2 reviews
Save 17%
Samsung 35E 18650 3500mAh 8A BatterySamsung 35E 18650 3500mAh 8A Battery
$4.99 USD $5.99 USD
Samsung 35E 18650 3500mAh 8A BatterySamsung
No reviews
Save 72%
Sony | Murata VTC5D 18650 2800mAh 25A BatterySony | Murata VTC5D 18650 2800mAh 25A Battery
$2.25 USD $7.95 USD
Sony | Murata VTC5D 18650 2800mAh 25A BatterySony
No reviews

AWithZ Spot Welders

View all
Nickel-Plated Steel Strip for Battery Spot Welding – 5m Roll (Multiple Sizes)
From $0.00 USD
Nickel-Plated Steel Strip for Battery Spot Welding – 5m Roll (Multiple Sizes)DIY500AMP.COM
No reviews
Save 33%
AWithZ WP158 Welding Pen Head (1 Set)
$9.99 USD $14.99 USD
AWithZ WP158 Welding Pen Head (1 Set)AWithZ
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
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
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
$34.99 USD
Kerpu CP01 5000mAh Pocket Spot Welder – Made by AWithZ | Affordable Entry-Level Portable Welding MachineAWithZ
No reviews
Save 14%
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
Save 20%
AWithZ WP240 Multi-Functional Spot Welding PenAWithZ WP240 Multi-Functional Spot Welding Pen
$79.95 USD $99.99 USD
AWithZ WP240 Multi-Functional Spot Welding PenAWithZ
No reviews
Save 22%
AWithZ UF20B- 10.5kW Spot WelderAWithZ UF20B- 10.5kW Spot Welder
$139.99 USD $179.99 USD
AWithZ UF20B- 10.5kW Spot WelderAWithZ
No reviews
Save 28%
AWithZ P20B Spot Welder 14.6 kWAWithZ P20B Spot Welder 14.6 kW
$209.95 USD $289.99 USD
AWithZ P20B Spot Welder 14.6 kWAWithZ
No reviews
Save 13%
AWithZ P30C - 24kW Spot WelderAWithZ P30C - 24kW Spot Welder
$349.99 USD $399.99 USD
AWithZ P30C - 24kW Spot WelderAWithZ
No reviews
Save 13%
AWithZ P60F - 29.2KW High Output Welding PowerAWithZ P60F - 29.2KW High Output Welding Power
$399.95 USD $459.99 USD
AWithZ P60F - 29.2KW High Output Welding PowerAWithZ
No reviews

Newsletter

Stay updated with the latest in DIY battery solutions! Subscribe to receive exclusive offers, expert tips, and insights on the newest products for your high-performance battery builds.