SolarGo2 SG2-PWM-15A User Manual

CHARGING STAGE

The unit has a 6-stage charging algorithm.
1 Diagnose* Only for Lithium battery types, once the Lithium battery initial
voltage is understood it will then determine the next stage of charge,
switching to soft start or bulk charge. If the Lithium battery is protected
by a BMS, the controller will automatically send the signal periodically to
the battery terminal to activate the BMS against protection and 'wake up'
the battery.
2 Soft starts When batteries suffer an over-discharge, the controller will
softly ramp the battery voltage up to 10V.
3 Bulk Charge Maximum current charging until batteries rise to absorption
level.
4 Absorption Constant voltage charging, and battery is over 85% for lead
acid battery; the LiFePO4 battery will close fully charging after absorption
stage, the absorption voltage level will reach 14.4V for LiFePO4 battery.
5 Equalisation* Only for WET and Calcium battery type, when the battery
is deeply drained below 10V or every 28 days cycle, it will automatically
run this stage to bring the internal cells as an equal state and fully
complement the loss of capacity. (LTO, LiFePO4, Gel and AGM battery do
not run Equalisation charge).
6 Float Charge The regulator will apply a float charge to maintain a fully
charged battery at full capacity (excluding lithium batteries).

SAFETY PROTECTION

Spark-free protection
Reverse polarity for solar and battery connection protection
Reverse current protection from solar panel to battery at
night time or very low light levels
Over temperature protection with charging current de-rate
Transient Voltage Suppressor (TVS), installed at solar input
and battery output, protects against surge voltage
Safety and EMC compliance
IEC/EN 60335, EN61000-3-3, EN61000-4-2, EN61000-4-3,
EN61000-4-4, EN61000-4-5 FCC Class-B, EN61000-4-6,
EN61000-4-11, CISPR14-1

MAINTENANCE

Occasionally, clean the case using a damp cloth and mild cleaning agent.
Check the terminals are not loose or rusty. If connecting cable is damaged
contact a qualified person for a replacement.
SCAN ME
e. Support@solargo2.com
www.solargo2.com
User Manual
In-Line 15A PWM
Solar Charge Controller
Part Number
SG2-PWM-15A
Input
DC12V Solar Panel (Max.25V)
Output
DC12V, 15A
Important: Please read before first use.