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DC 3.7V 500mAh 403040 Rechargeable Lithium Polymer Battery, Suitable for DIY 3.7-5V Electronic Products with Built-in 2-Wire Battery Replacement and LED Lights
Brand: HXJNLDC
Condition: Used - Very Good
$1250
$2100
-41% Save $850
Updated: 7 days ago
Description
• This battery is applicable to electronic products with DIY 3.7-5V less than 1.85Wh 500mAh.（★ Not applicable to high-power electric tools and model aircraft）
• Please compare the connector specifications and polarity according to the display diagram before purchasing,★the red wire is the positive "+" and the black wire is the negative "-"，Do not reverse-charge or reverse-connectreverse. ★The primary battery of some products has no plug or mismatched plug or mismatched polarity. It doesn't matter, you can cut and solder the plug directly or use our heat shrinkable insulating sleeve to connect the same color wire.
• 403040 rechargeable lithium ion polymer battery, nominal voltage 3.7V, full charge voltage 4.2V, capacity 500mAh, power 1.85Wh, ★size 41×30×4mm(1.2×0.787×0.354inch）(L*W*T), Weight:10g(0.353oz)，Maximum current:0.5A。 It can prevent overcharge, overdischarge, overcurrent, and short circuit.
• It‘s consists of of large-capacity A+ lithium battery, Japanese Seiko IC overcharge and overcurrent short circuit protection board, 3302-26 high temperature resistant silicone cable, and genuine JST Pitch 1.25mm ★2 wire connector module.
• If there are any quality issues within a year, ★please feel free to contact us via email for replacement.
Package:403040 500mAh LiPo battery x 1,heat shrinkable insulating sleeve x 1
This battery is applicable to electronic products with DIY 3.7-5V less than 1.85Wh 500mAh.（★ Not applicable to high-power electric tools and model aircraft）
Size:41×30×4mm(1.2×0.787×0.354inch）(L*W*T)
Capacity:500mAh
Weight:10g(0.353oz)
Maximum current:0.5A
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Product Details
- SKU:
- awhd-ca-b0chys7xfv
- Model:
- 402030
- Country:
- CA
- ASIN:
- B0CHYS7XFV
- UPC:
- 754525114734
Shopping Smarter
Common questions about buying open-box and refurbished.
Why buy refurbished or open-box?
Refurbished and open-box products offer the same performance as new at a fraction of the price. You're already saving $9 on this listing. They've been inspected, tested, and are ready to use — the only difference is the price tag. Buying refurbished also reduces electronic waste, extending product life cycles and keeping functional devices out of landfills.
What's the difference between open-box and refurbished?
Open-box products are customer returns that have been inspected and confirmed functional. They may show little to no use — often the item was returned simply because the buyer changed their mind. Refurbished products have been professionally repaired or restored by technicians, tested to meet or exceed manufacturer specifications, and sometimes come with a warranty. Both are a smart alternative to buying new.
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Is it safe to buy refurbished?
Yes. Products listed on OpenBoxFox come from established retailers like Amazon, Reebelo, and Dyson — not unknown third-party sellers. Each retailer has buyer protection policies, return windows, and in some cases warranties. You get the price advantage of used goods with the purchase security of a known retailer.
