USB/DC Lithium Polymer battery charger 5-12V - 3.7/4.2v cells

SKU: ADA280 Brand: Adafruit

Retired Product

Replaced by: ADA259

This product has been replaced by: ADA259
This product is no longer available. This page is only for reference.

Charge your single-cell lithium ion/polymer battery any which way you like with this board. Have a USB connection? No problem, just plug into the miniUSB connector. Only have a wall adapter? Any standard 2.1mm DC adapter which puts out 5 to 12VDC will work fine. If both are plugged in, the charger will automatically choose whichever has the highest voltage.

Other nice things about this charger include multiple LEDs for power & charging status, including a charging LED which will blink when the battery is full. If the charger gets too hot from high-speed charging, it will slow down the charge rate automatically. You can easily adjust the charge rate up to 1.2A or down to 100mA.

For use with Adafruit Lipoly/LiIon batteries only! Other batteries may have different voltage, chemistry, polarity or pinout.

Use USB or DC power - 5 to 12V input
Charges one single-cell 3.7/4.2v batteries (not for older 3.6/4.1v cells) with constant current/constant voltage
Three indicator LEDs - green for Power, orange for charging and red for error
Charging LED will blink when the battery is full
You don't have to worry about heat dissipation in the charger, even when plugging in a 12V DC power jack - thermal protection inside will slow down the charge rate to prevent damage
2 JST connections so you can keep the battery plugged in and powering your project
Terminal block connections galore (if you don't like JST connectors) just solder in 3.5mm terminal blocks
Default charge rate is about 500mA, but you can easily change this by soldering in a through-hole resistor on. The chip can do 100-1200 mA charging
Safety timer will stop charging after about 14 hours
The chip supports a standard 10K thermistor, which Adafruit have stuffed as a standard resistor. You can solder in a thermistor easily
Lots of information in the datasheet for the MCP73861
Fully assembled, tested and comes with a free JST cable
Schematic available for your perusal
Dimensions: 1.75" x 1.6"

Battery, USB cable and DC power plug not included. But we do stock them in the store!

Technical Details

Details:

Dimensions: 40mm x 44mm x 13mm (1.6in x 1.7in x 0.5in)
Weight: 11.7g ( 0.4oz)

This product is listed in:

Retired

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Exact shipping can be calculated on the view cart page (no login required).

Products that weigh more than 0.5 KG may cost more than what's shown (for example, test equipment, machines, >500mL liquids, etc).

We deliver Australia-wide with these options (depends on the final destination - you can get a quote on the view cart page):

$3+ for Stamped Mail (typically 10+ business days, not tracked, only available on selected small items)
$6+ for Standard Post (typically 6+ business days, tracked)
$10+ for Express Post (typically 2+ business days, tracked)
Pickup - Free! Only available to customers who live in the Newcastle region (must order online and only pickup after we email to notify you the order is ready). Orders placed after 2PM may not be ready until the following business day.

Non-metro addresses in WA, NT, SA & TAS can take 2+ days in addition to the above information.

Some batteries (such as LiPo) can't be shipped by Air. During checkout, Express Post and International Methods will not be an option if you have that type of battery in your shopping cart.

International Orders - the following rates are for New Zealand and will vary for other countries:

$11+ for Pack and Track (3+ days, tracked)
$16+ for Express International (2-5 days, tracked)

If you order lots of gear, the postage amount will increase based on the weight of your order.

Our physical address (here's a PDF which includes other key business details):

Unit 18, 132 Garden Grove Parade
Adamstown
NSW, 2289
Australia

Take a look at our customer service page if you have other questions such as "do we do purchase orders" (yes!) or "are prices GST inclusive" (yes they are!). We're here to help - get in touch with us to talk shop.

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