# PKCELL LiPo 3.7 V 420 mAh LP552535

> PKCELL LP552535 lithium-polymer pouch cell with a short 25 mm cable (Adafruit 4236): 3.7 V nominal, 420 mAh (399 mAh min), about 1.55 Wh, 4.2 V charge, 3.0 V cut-off, 1.5C (630 mA) continuous discharge, 1C (420 mA) max charge, ≥300 cycles, built-in 1S protection (R5478N101CD), max 37.5 × 25.5 × 5.7 mm, 8.8 g, JST PH 2-pin plug.

- Manufacturer: PKCELL
- Part number: LP552535
- Category: Batteries
- Canonical page: https://www.xirkit.io/products/pkcell-lipo-3-7-v-420-mah-lp552535-38a6
- Pinout: https://www.xirkit.io/products/pkcell-lipo-3-7-v-420-mah-lp552535-38a6/pinout
- Structured JSON: https://www.xirkit.io/products/pkcell-lipo-3-7-v-420-mah-lp552535-38a6/data.json
- Source: Xirkit structured parts catalog — every value traced to a cited document; unknowns are explicit.

## Key specifications

| Property | Value |
| --- | --- |
| Chemistry | li-po |
| Form factor | pouch 552535 |
| Configuration | 1S1P |
| Nominal voltage | 3.7 V |
| Charge voltage | 4.2 V |
| Cut-off voltage | 3 V |
| Capacity | 420 mAh |
| Minimum capacity | 399 mAh |
| Energy | 1.55 Wh |
| Max continuous discharge | 0.63 A |
| Standard charge current | 0.21 A |
| Max charge current | 0.42 A |
| Protection circuit | built in |
| Cycle life | 300 cycles |
| Dimensions | 37.5 × 25.5 × 5.7 mm |
| Operating temperature | -20 to 60 °C |
| Certifications | UN38.3 test report, MSDS |

## Pinout (2 pins, 0 with electrical limits)

| Pin | Position | Kind | Chip pad | Functions | VIH | VIL | VOH | VOL | IOH | IOL | 5 V tolerant |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| RED | JST PH-2P | positive | — | red | — | — | — | — | — | — | — |
| BLACK | JST PH-2P | negative | — | black | — | — | — | — | — | — | — |

## Where to buy

| Supplier | Price | Stock | Checked | URL |
| --- | --- | --- | --- | --- |
| www.adafruit.com | 6.95 USD | in_stock | 2026-10-01 | https://www.adafruit.com/product/4236 |

## FAQ

**What voltage powers the PKCELL LiPo 3.7 V 420 mAh LP552535?**

Supply range 3–4.2 V.

**How much does the PKCELL LiPo 3.7 V 420 mAh LP552535 cost?**

From $6.95 at www.adafruit.com. Prices are observed unit prices before tax and shipping.

**What are the PKCELL LiPo 3.7 V 420 mAh LP552535 dimensions?**

37.5 × 25.5 × 5.7 mm. A STEP model is available for enclosure fit checks.

**Where does this PKCELL LiPo 3.7 V 420 mAh LP552535 data come from?**

Every value in this record is traced to a source — 2 documents including the board and chip datasheets — with the page and table cited per value. Unknowns are left explicit, never guessed.

## Sources

- [PKCELL LiPo 3.7 V 420 mAh LP552535 datasheet](https://cdn-shop.adafruit.com/product-files/4236/4236_ds_LP552535+420mAh+3.7V.pdf)
- [www.adafruit.com listing](https://www.adafruit.com/product/4236)

## Part graph

### Alternatives (by use case)

- [PKCELL LiPo 3.7 V 500 mAh LP503035](https://www.xirkit.io/products/pkcell-lipo-3-7-v-500-mah-lp503035-e8bd) — Both serve battery-powered and portable builds — check the trade-offs; $6.95 vs $7.95
- [PKCELL LiPo 3.7 V 350 mAh LP552530](https://www.xirkit.io/products/pkcell-lipo-3-7-v-350-mah-lp552530-06ed) — Both serve battery-powered and portable builds — check the trade-offs; $6.95 vs $5.95
- [PKCELL LiPo 3.7 V 350 mAh LP552035](https://www.xirkit.io/products/pkcell-lipo-3-7-v-350-mah-lp552035-0fc3) — Both serve battery-powered and portable builds — check the trade-offs; $6.95 vs $6.95
- [PKCELL 18650 Li-ion 3.7 V 2200 mAh (PCM)](https://www.xirkit.io/products/pkcell-18650-li-ion-3-7-v-2200-mah-pcm-2b9c) — Both serve battery-powered and portable builds — check the trade-offs; $6.95 vs $9.95
- [PKCELL LiPo 3.7 V 1200 mAh LP503562](https://www.xirkit.io/products/pkcell-lipo-3-7-v-1200-mah-lp503562-3ff4) — Both serve battery-powered and portable builds — check the trade-offs; $6.95 vs $9.95
- [PKCELL LiPo 3.7 V 400 mAh LP801735](https://www.xirkit.io/products/pkcell-lipo-3-7-v-400-mah-lp801735-452a) — Both serve battery-powered and portable builds — check the trade-offs; $6.95 vs $6.95
- [PKCELL LiPo 3.7 V 150 mAh LP402025](https://www.xirkit.io/products/pkcell-lipo-3-7-v-150-mah-lp402025-6146) — Both serve battery-powered and portable builds — check the trade-offs; $6.95 vs $5.95
- [Molicel INR-21700-P50B](https://www.xirkit.io/products/molicel-inr-21700-p50b-e161) — Both serve battery-powered and portable builds — check the trade-offs; $6.95 vs $9.99