ACOPOWER PWM20A, Product Introduction

3×40W

Press BATTERY TYPE button and hold for 3 seconds to go into your battery type selection mode, 

the battery type you select will be shown on the LCD meter,the default setting is AGM Battery; the 

controller will automatically memorize your battery type setting.

Li-ion battery shown in LCD indicates 3-SERIES Li-ion battery shown as below: 

--Lithium Cobalt Oxide LiCoO

2

 (LCO) battery 

--Lithium Manganese Oxide LiMn

2

O

4

 (LMQ) battery 

--Lithium Nickel Manganese Cobalt Oxide LiNiMnCoO

2

 (NMC) battery

--Lithium Nickel Cobalt Aluminum Oxide LiNiCoAlo

2

 (NCA) battery 

Remarks: This solar controller is recommended to just work with 3 x series above Li-ion batteries. 

LiFePO4 battery shown in LCD indicates Lithium Iron Phosphate battery, LFP battery.

LTO battery shown in LCD indicates Lithium titianate oxidized, Li

4

Ti

5

O

12

 battery. 

Caution:Incorrect battery type setting may damage your battery. 

When the controller powers on,the unit will runself-qualify modeand automatically show below 

items on LCD before going into charging process.

Self-test starts,digital meter segments test

Software version test

                  Rated voltage and current test

    External battery temperature sensor test(if connected)

Indicates the solar panel connected. 

After going into charging process, the LCD displays the charging statues as below: Press 

VOLT/AMP buttonin sequence,the LCD will display inturn with Battery Voltage,Charging 

Current,Charged capacity(Amp-hour) and Battery Temperature(if external temperature sensor 

connected) 

Displayinsequence