{"product_id":"adafruit-bq25185-usb-dc-solar-charger-with-5v-boost-board","title":"Adafruit bq25185 USB \/ DC \/ Solar Charger with 5V Boost Board","description":"\u003cp\u003eWe're always on the lookout for better ways to make projects portable: being able to charge your battery in the most convenient manner will let projects run no matter what power is available. Then we added a power supply chip with it to let you run your project without a separate board. The result is the Adafruit bq25185 USB \/ DC \/ Solar Charger with a 5V Boost Board!\u003c\/p\u003e\n\u003cp\u003eIt uses the new \u003ca href=\"https:\/\/www.ti.com\/product\/BQ25185\"\u003ebq25185\u003c\/a\u003e is a nifty charger chip with fairly high charge current, power path support, and the ability to charge from USB, DC or solar power. It's also a great value, so it's a good upgrade from \u003ca href=\"\/hi\/products\/adafruit-usb-liion-lipoly-charger\" title=\"USB LiIon\/LiPoly charger (v1.2)\"\u003eMCP73833\u003c\/a\u003e or \u003ca href=\"\/hi\/products\/adafruit-micro-lipo-charger-for-lipoly-batt-with-usb-type-c-jack\" title=\"Adafruit Micro-Lipo Charger for LiPoly Batt with USB Type C Jack\"\u003eMCP73831\u003c\/a\u003e-based charger boards. The boost converter is the \u003ca href=\"\/hi\/products\/adafruit-miniboost-5v-1a-tps61023\" title=\"Adafruit bq25185 USB \/ DC \/ Solar Charger with 5V Boost Board\"\u003eTPS61023\u003c\/a\u003e, which will give up to 1 Amp output with good efficiency, to squeeze the most power possible out of your battery.\u003c\/p\u003e\n\u003cp\u003eThis board is meant to be everything you need to power your 5V electronics: simply connect a \u003ca href=\"\/hi\/search?q=3.7+lipo+battery\u0026amp;narrow_by=\u0026amp;sort_by=relevency\u0026amp;page=1\" title=\"3.7 lipo battery\"\u003e500mAh or larger battery\u003c\/a\u003e to the JST PH 2-pin port, then charge it when you can from USB or DC\/solar. At the other end is a terminal block which will provide the 5V output from the boost converter.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"\/hi\/products\/usb-a-to-usb-c-cable-1m\" title=\"USB-A to USB-C Cable\"\u003eUSB Type-C\u003c\/a\u003e connector with 5.1k CC resistors so it will work with any computer or power supply to get 5V and up to 1A. Data lines available if needed, on the bottom breakout.\u003c\/li\u003e\n\u003cli\u003eSeparate DC or Solar Input - Two pads on the edge can be used to connect a 5 ~ 18V power supply, which can be used instead of USB. If the input is a solar panel, the charging chip will adjust the current draw so that the voltage does not dip below the battery, thus optimizing the solar power input. No large capacitor is needed to stabilize it, and you get near-MPPT capability without the cost and complexity of MPPT.\u003c\/li\u003e\n\u003cli\u003eDefault charge rate of 1A, but you can cut the jumper on the back to set the rate to 500mA\u003c\/li\u003e\n\u003cli\u003ePower Path to Load - If the 5V load connector is drawing current while the USB \/ DC\/Solar power is attached, it will default to drawing current from the charger and any leftover current will go to the battery. That keeps your battery from constantly charging\/discharging which will reduce the battery life.\u003c\/li\u003e\n\u003cli\u003eRegulated 5V Output - a boost converter will take the load output from the bq25185 and convert it to 5V at 1 Amp max load. Note the TP61023 cannot turn on\/off high loads, it will stall over 200mA. That means it's not going to like it if you have a high current load that instantly draws full current on power up, like a resistive dummy load. The vast number of microcontroller projects will start up with \u0026lt;200mA and then a half second later will turn on high current items like LEDs, motors, wifi\/radios, or displays so the restriction won't affect it.\u003c\/li\u003e\n\u003cli\u003eThree Status LEDs - Orange Charging LED, red Fault LED, and Green 3.3V output LED.\u003c\/li\u003e\n\u003cli\u003eEnable pad - to disable the 5V boost converter.\u003c\/li\u003e\n\u003cli\u003eMounting holes!\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis board is pretty much plug-and-play. Change the charging jumper if you like, then connect your battery to the BATT port, and the 5V output goes to your circuit. You can monitor the voltage on the battery via the secondary pads on the bottom edge, if necessary.\u003c\/p\u003e\n\u003cp\u003eTo use with solar, pick up a \u003ca href=\"\/hi\/collections\/solar-panels-and-management-boards\" title=\"Solar Panels and Management Boards\"\u003e5~7V solar panel\u003c\/a\u003e (using a higher voltage panel will only lose the extra voltage as heat so there's no benefit to going over 7V), and either cut the connector off to wire it directly, or use a \u003ca href=\"\/hi\/products\/3-8-1-3mm-or-3-5-1-1mm-to-5-5-2-1mm-dc-jack-adapter-cable\" title=\"3.8 \/ 1.3mm or 3.5 \/ 1.1mm to 5.5 \/ 2.1mm DC Jack Adapter Cable\"\u003e2.1mm adapter cable\u003c\/a\u003e plus a \u003ca href=\"\/hi\/products\/female-dc-power-adapter-2-1mm-jack-to-screw-terminal-block\"\u003e2.1mm terminal block\u003c\/a\u003e to get two wires for the DC Input port.\u003c\/p\u003e\n\u003cp\u003eIf you need a board with a higher charge current or a DC plug already on board, check out the \u003ca href=\"\/hi\/products\/adafruit-universal-usb-dc-solar-lithium-ion-polymer-charger-bq24074\" title=\"Adafruit Universal USB \/ DC \/ Solar Lithium Ion\/Polymer Charger (bq24074)\"\u003ebq24074\u003c\/a\u003e which has up to a 1.5A charge rate and an on-board 2.1mm DC jack. It doesn't have a boost converter but you could wire up the TPS61023 separately.\u003c\/p\u003e\n\u003cp\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/KPdERfnL-oE?si=jCafAQN9oKmewIvU\u0026amp;start=292\" title=\"YouTube video player\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen=\"allowfullscreen\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003ch2\u003eResources\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/learn.adafruit.com\/adafruit-bq25185-usb-dc-solar-charger-with-5v-boost-board\"\u003ePrimary Guide\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Adafruit","offers":[{"title":"Default Title","offer_id":50847098994961,"sku":"ADA6106","price":8.6,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0901\/6285\/6209\/files\/adafruit-bq25185-usb-dc-solar-charger-with-5v-boost-board-adafruit-ada6106-72524819726721.jpg?v=1735206772","url":"https:\/\/abcd3032.myshopify.com\/hi\/products\/adafruit-bq25185-usb-dc-solar-charger-with-5v-boost-board","provider":"Tayyab Zak","version":"1.0","type":"link"}