Logical pinout · physical placement not verified

USB-Ctop edge USB-C connector
USB Type-C input connector with 5.1k CC resistors
Type · PowerVoltage · 5V input, up to 1A
DCINright side pads
separate DC or solar input pads, alternative to USB input
Type · PowerVoltage · 5V to 18V
BATTbottom JST-PH connector and right side monitor pads
single-cell battery output/connection, default 500mA charge rate
Type · UnknownVoltage · 3.7V nominal / 4.2V max default LiPo/LiIon
LOADbottom JST-PH connector and right side monitor pads
load output powered from charger when input is present, with battery support for spikes
Type · PowerVoltage · regulated output, never above 4.5V
THstatus/control pads
thermistor pad, cut TH jumper and connect 10K thermistor for battery temperature charge-rate adjustment
Type · Analog
VSstatus/control pads
voltage setting pad, used with back jumper for LiFePO4 3.2V nominal / 3.65V max mode
Type · Control
ISstatus/control pads
current setting pad, used with back jumpers to choose 1A or 250mA instead of default 500mA
Type · Control
S1status/control pads
Status 1 pad connected to the red FAULT LED
Type · Unknown
S2status/control pads
Status 2 pad connected to the orange CHRG LED
Type · Unknown
/CEstatus/control pads
chip enable pad, pull high to disable the charger IC
Type · Control

Pin	Position	Type	Function	Voltage
USB-C	top edge USB-C connector	Power	USB Type-C input connector with 5.1k CC resistors	5V input, up to 1A
DCIN	right side pads	Power	separate DC or solar input pads, alternative to USB input	5V to 18V
BATT	bottom JST-PH connector and right side monitor pads	Unknown	single-cell battery output/connection, default 500mA charge rate	3.7V nominal / 4.2V max default LiPo/LiIon
LOAD	bottom JST-PH connector and right side monitor pads	Power	load output powered from charger when input is present, with battery support for spikes	regulated output, never above 4.5V
TH	status/control pads	Analog	thermistor pad, cut TH jumper and connect 10K thermistor for battery temperature charge-rate adjustment
VS	status/control pads	Control	voltage setting pad, used with back jumper for LiFePO4 3.2V nominal / 3.65V max mode
IS	status/control pads	Control	current setting pad, used with back jumpers to choose 1A or 250mA instead of default 500mA
S1	status/control pads	Unknown	Status 1 pad connected to the red FAULT LED
S2	status/control pads	Unknown	Status 2 pad connected to the orange CHRG LED
/CE	status/control pads	Control	chip enable pad, pull high to disable the charger IC

Logical pinout · physical placement not verified

Pin details

10 connections

USB-C
USB Type-C input connector with 5.1k CC resistors
PowerVoltage · 5V input, up to 1A
top edge USB-C connector
DCIN
separate DC or solar input pads, alternative to USB input
PowerVoltage · 5V to 18V
right side pads
BATT
single-cell battery output/connection, default 500mA charge rate
UnknownVoltage · 3.7V nominal / 4.2V max default LiPo/LiIon
bottom JST-PH connector and right side monitor pads
LOAD
load output powered from charger when input is present, with battery support for spikes
PowerVoltage · regulated output, never above 4.5V
bottom JST-PH connector and right side monitor pads
TH
thermistor pad, cut TH jumper and connect 10K thermistor for battery temperature charge-rate adjustment
Analog
status/control pads
VS
voltage setting pad, used with back jumper for LiFePO4 3.2V nominal / 3.65V max mode
Control
status/control pads
IS
current setting pad, used with back jumpers to choose 1A or 250mA instead of default 500mA
Control
status/control pads
S1
Status 1 pad connected to the red FAULT LED
Unknown
status/control pads
S2
Status 2 pad connected to the orange CHRG LED
Unknown
status/control pads
/CE
chip enable pad, pull high to disable the charger IC
Control
status/control pads

Start wiring

Wide input · Module

Verify supply voltage and logic levels before powering up.

Solar

27 other options

Solar panels from 1.5V 250mA flexible film to 18V 10W polysilicon, MPPT solar power managers (DFRobot 5V and 9V/12V/18V, Waveshare 6V–24V), bq25185 charger boards and LTC3588 energy-harvesting breakouts.

View all 27

Related groups

4 groups

Batteries

9V alkaline cells, CR2032 coin cells, 3.7V LiPo packs (1000–1200mAh), 7.4V 2S LiPo, 18650 Li-ion holders (1–6 cells), AA/AAA holders in every configuration, and snap leads with barrel adapters.

Power · Batteries · 104 parts

Charging

Single-cell LiPo chargers (TP4056, MicroUSB/Type-C modules), charger/booster combos (PowerBoost 500/1000, Lipo Rider Plus 5V/2.4A), I2C fuel gauges (MAX17048, LC709203F) and Qi wireless charging coils.

Power · Chargers & fuel gauges · 47 parts

Power supplies

Wall adapters (5V–24V), adjustable and fixed buck/boost/buck-boost converters (MT3608, LM2596-class), USB-C PD triggers (HUSB238), breadboard supplies, DIN-rail units and passive barrel-jack adapters.

Power · Supplies & regulators · 147 parts

3D printing

DFRobot 1.75 mm PLA in 1 kg spools makes up the bulk of the group, in over 15 colors. Specialty options include PVA in both diameters, NinjaFlex flexible filament, Proto-Pasta conductive PLA, and wood-fill. OverLord printer spares and OverLord printers round out the hardware side.

Tools & prototyping · 3D printing · 53 parts