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20A MPPT Solar Charge Controller for Lithium or SLA Batteries


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20A MPPT Solar Charge Controller for Lithium or SLA Batteries.

Uses Maximum Power Point Tracking (MPPT) for maximum efficiency and charge rate. Able to charge lead acid (sealed, gel or flooded) or lithium battery banks between 8V to 32V, and supports 12V solar arrays up to 260W or 24VDC arrays up to 520W. It features bulk, constant and float charge stages for rapid, efficient and safe battery charging, with feedback on charge status, current, voltages, etc. shown on the LCD screen. Built into a durable case for permanent installation with heavy duty screw terminals for cabling up to 10AWG.

Note: To use the Lithum feature of this Charge Controller you will need to Purchase TXWS5815 to program this controller with details from your battery's data sheet.


Backlit LCD display.
RS485 communication.
Multiple load work modes.
Common negative grounding.
3-stage intelligent charging.
Extensive electronic protection.
Advanced MPPT control technology.
High tracking and conversion efficiency.
Supports Sealed, Gel or flooded lead acid and Lithium batteries.


Max Load Current 20A.
Input Voltage 16 - 100VDC.
Dimensions 221(H) x 155(W) x 52(D)mm, 940g.
Compatible Battery Bank Voltages 12 / 24VDC Selectable.
Maximum Input Power 520W (12VDC System) / 260W (24VDC System).

Battery support:
LiFePO4 (12V/24V).
LiNiCoMnO2 (12V/24V).
Sealed, gel or flooded Lead-acid (8~17V/12V; 18~32V/24V).

DC Voltage : 12.0V, 24.0V
Width : 155.0mm
Height : 221.0mm
Depth : 52.0mm
Weight : 940.0g
Charge Controller Technology : Maximum Power Point Tracking (MPPT)
Max PV Open Circuit Voltage : 100.0V
Max Charging Current : 22.5A
Max Load Current : 20.0A
Max Solar Panel Array : 520.0W.


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