3.7V 2000mAh LiPo Battery
Slim rechargeable LiPo cell for compact wearable and drone builds.
A rechargeable lithium-polymer pouch cell offering a good capacity-to-weight ratio for wearables, drones, and compact robots. Unlike a rigid cylindrical 18650, a LiPo pouch cell is thin, flexible in shape, and lightweight for its capacity, making it well suited to projects where the battery needs to fit into a slim enclosure or minimize overall weight — but it requires careful handling, since LiPo cells are more sensitive to puncture, overcharge, and over-discharge damage than more rugged cell formats.
Specifications
| Chemistry | Lithium-polymer (LiPo), single cell |
| Nominal voltage | 3.7V (charged: 4.2V, discharged cutoff: ~3.0-3.2V) |
| Capacity | 2000mAh |
| Connector | Common 2-pin JST-PH connector (2.0mm pitch) — verify polarity before connecting, as JST connector polarity is not universally standardized across suppliers |
| Discharge rate | Typically 1C-2C continuous for standard (non-high-discharge) LiPo cells, check the specific cell's rated C-rating for higher-draw applications |
| Protection | Bare cell has no built-in protection circuit — requires a separate charge/protection module (e.g. TP4056 with DW01) for safe charging and discharge cutoff |
| Physical form | Thin flexible pouch, size and shape vary by supplier at a given capacity |
Pinout
| Pin | Name | Description |
|---|---|---|
| 1 | Red wire (+) | Positive terminal via JST-PH connector |
| 2 | Black wire (-) | Negative terminal via JST-PH connector |
Always verify the exact polarity of the JST connector before plugging into a charge board or power circuit, since not all suppliers wire the same pin as positive; reversing polarity can damage both the cell and connected electronics. Never charge a bare LiPo cell without a proper protection/charge circuit, never puncture or bend the pouch, and always monitor charging, since damaged or improperly charged LiPo cells present a fire risk.
Variants
Pick the LiPo pouch format when the project's shape or weight budget calls for a slim, flexible cell (wearables, small drones). For a bulkier project where ruggedness and easy holder-based mounting matter more than slimness, an 18650 cylindrical cell is often a simpler and cheaper option.
| Variant | Temp range | Hum range | Accuracy | Protocol | Price |
|---|---|---|---|---|---|
| LiPo 2000mAh (standard discharge) | ~$5-10 | ||||
| LiPo 1000mAh / 500mAh | ~$3-7 | ||||
| 18650 Li-ion cell (single, ~2500-3500mAh) | ~$3-8 |