SQ-M340LPotted Controllers

MPPT Boost IR

MPPT boost IR controller — 16A charging, 40W output, built-in coulomb counter & AI algorithm, ideal for 60–100W PV panels.

Industrial-grade MCU all-digital technology — no trim resistors, strong anti-interference, no aging or drift
Designed for single-cell LiFePO4 battery systems — no battery protection board needed, cells in parallel, high capacity utilization, lower PACK cost
Synchronous rectification topology: MPPT tracking efficiency ≥99%, charging conversion efficiency up to 95%, output conversion efficiency up to 92%
Smart charging management with CC/CV trickle charge and 0V charging, greatly extending battery life
Built-in coulomb counter plus AI algorithm for precise battery capacity and reliable runtime on cloudy/rainy days
IP65-rated design with aluminum housing, low temperature rise, reliable in harsh environments
Configurable light-control thresholds; discharge curve fully programmable via engineering remote (8 time segments + dawn boost)
Complete protection: overcharge, over-discharge (current-limited), battery reverse-polarity, PV reverse-polarity, PV short-circuit, LED open/short-circuit, over-temperature

Technical Specifications
Electrical		Electrical
Max charging current	16A	Standby consumption	50–100µA
Standby consumption	50–100µA
Battery type	LiFePO4	System voltage	3.2V
System voltage	3.2V
Max PV panel power	60–100W	Charging method	MPPT
Charging method	MPPT
Discharge method	Boost, constant current & power	Output voltage	9–30V (adaptive)
Output voltage	9–30V (adaptive)
PV voltage	18V	Max output power	40W
Max output power	40W
Discharge cutoff voltage	2.6V	Overcharge protection voltage	3.6V
Overcharge protection voltage	3.6V
Protection & Environment		Protection & Environment
Protection rating	IP65	Operating temperature	-40°C to 80°C
Operating temperature	-40°C to 80°C
Mechanical & Others		Mechanical & Others
Dimensions	86×66.5×20 mm	Weight	≈0.187 kg
Weight	≈0.187 kg