YDL Battery · Factory Direct Since 2018
Custom 3.7V LiPo Battery — OEM & Wholesale
Hundreds of stock sizes, or fully custom cells built to your dimensions, capacity, connector and wire spec. Samples from 5 pcs · 10,000 units delivered in 7 days.
Battery Spec Configurator
Pick a stock model, or switch to Custom made and enter your own dimensions — the drawing updates live. When it looks right, send it straight to the inquiry form.
Set the ranges your device allows — matching stock batteries are loaded from our live catalogue.
No stock battery fits these ranges — loosen a slider, or switch to Custom made and we will build it to size.
0.4 – 15 mm. Enter 5.0 for a 5 mm cell.
Value adjusted to the supported range (thickness 0.4–15 mm).
✓ Spec added below — finish the form and send.
Model number = thickness × width × cell length. The finished battery is ~2 mm longer than the cell because of the PCM protection board — sizes shown here are finished dimensions.
Browse Stock Sizes by Series
Series names follow the same dimension code. Pick the footprint closest to your device — most series stock several capacities.
Factory established — R&D, production and sales under one roof in Dongguan.
Lead time for 10,000-unit orders on automated production lines.
Minimum sample order for testing and validation — no minimum spend.
Cells tested on professional equipment before shipment.
Send Your Inquiry
We reply within 24 hours on business days. Prefer email? Write to sale@ydlbattery.com.
Frequently Asked Questions
What is the MOQ for custom 3.7V LiPo batteries?
Stock models ship from 5 pcs for samples. Custom cells (new dimensions, connector or wire spec) typically start at 500 pcs depending on the size — tell us your target quantity and we will confirm feasibility.
How do I read a LiPo model number like 503450?
The digits encode the bare cell: thickness × width × length. 503450 means a 5.0 mm thick, 34 mm wide, 50 mm long cell. The finished battery is about 2 mm longer because of the PCM protection board, so always check the finished dimensions shown in our configurator against your device space.
Which connectors can you fit?
JST-PH 2.0, JST-SH 1.0, JST-ZH 1.5, Molex 51021 and most common micro connectors, plus bare wire leads at any length. Not sure which one your device uses? See our connector identification guide or send us a photo.
How long is production and shipping?
Stock models ship within 2–3 business days. Custom orders of 10,000 units are produced in about 7 days. Lithium batteries ship by approved carriers under UN3480/UN3481 rules — see our shipping FAQ for transit times.
Do your batteries include protection circuits?
Yes — cells ship with a PCM protection board by default (over-charge, over-discharge and short-circuit protection). Bare cells and NTC thermistor options are available for OEM integration.