Adafruit 259 , USB Li-Ion/LiPoly Charger, v1.2
Product details
| Management number | 218130349 | Release Date | 2026/05/03 | List Price | $8.72 | Model Number | 218130349 | ||
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This is a lithium ion and lithium polymer battery charger based on the MCP73833. It uses a USB mini-b for connection to any computer or 'USB wall adapter'. charging is done in three stages: first a preconditioning charge, then a constant-current fast charge and finally a constant-voltage trickle charge to keep the battery topped-up. The fast-charge current is 500MA by default, but is easily adjustable from 100MA up to 1000MA by soldering a through-hole resistor on-board. This board is great for DIY projects because it has 3 indicator LEDs - one for power, one for charging status and a third that indicates when charging is complete. You may also keep the battery connected to the charger and pass power through the additional jst connector using the included cable.
- Comes assembled and tested with a free bonus jst cable
- For charging single lithium ion/lithium polymer
- Weight: 5.7G ( 0.2Oz)
- Chip supports a 10K ntc thermistor which we have stuffed as a plain 10K. For people who require temperature monitors (using high charge rates), remove the 10K and solder in the thermistor in its place
- 0.1 inch
| Item Weight | 0.64 ounces |
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| Manufacturer | Adafruit Industries |
| Item model number | 259 |
| Package Dimensions | 2.99 x 2.52 x 0.04 inches |
| Is Discontinued By Manufacturer | No |
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