Pi Australia | SKU: AF-259

USB LiIon/LiPoly charger [v1.2]

Name: USB LiIon/LiPoly charger [v1.2]
Brand: Pi Australia
SKU: AF-259
Price: 25.24 AUD
Availability: InStock

$25.24

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Call us on 1300 240 817 between 10 AM and 4 PM on weekdays or email team@littlebird.com.au .

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We deliver across Australia, and here are the options (based on your location; view them on the cart page):

Standard Post: Starting at $7 (6+ business days, with tracking)
Express Post: Starting at $11 (2+ business days, with tracking)
Same Day Delivery: Available for Sydney orders.
Non-metro WA, NT, SA, and TAS: May take an additional 2+ days.

A reliable USB-powered charger for single-cell 3.7V lithium-ion and lithium-polymer batteries. Based on the MCP73833 charging IC, it connects to any USB port or wall adapter via mini-B connector and provides safe, intelligent charging with visual status feedback.

Three indicator LEDs show power, charging status, and completion at a glance. Dual JST connectors let you keep the battery connected while powering your project—no need to disconnect for charging.

Key Features

3-Stage Charging – Preconditioning, constant-current fast charge, and constant-voltage trickle charge for optimal battery health
500mA Default Current – Adjustable from 100mA to 1000mA by soldering a through-hole resistor
Dual JST Connectors – Separate ports for battery and load system allow pass-through operation
Triple LED Indicators – Power, charging, and charge complete status at a glance
Thermistor Support – 10K resistor installed; replace with NTC thermistor for temperature monitoring at high charge rates
Breakout Pins – 0.1" (2.54mm) headers for battery, DC, and status LEDs

Specifications

Input – 5V via USB mini-B
Battery Compatibility – Single-cell 3.7V/4.2V Li-Ion or LiPo
Charge Current – 500mA default (100-1000mA adjustable)

Package Contents

1× USB LiIon/LiPoly Charger v1.2 (assembled and tested)
1× 2-pin JST cable

Note: Designed for Adafruit LiPo batteries. Other batteries may have different voltage, chemistry, polarity, or pinout. Not compatible with older 3.6V/4.1V cells. Battery and USB cable sold separately.

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