Rogue Engineering 1950-253 User Manual

Recommended Installation Instructions

DO NOT CONNECT OR DISCONNECT WIRING IN A HAZARDOUS ENVIRONMENT!

1. Securely mount the 1950-253 10A SLA/Flooded Solar Battery Charge Controller
in a certi ed enclosure near the battery to be charged. The charge controller may
be bolted to a back plate using the available mounting  anges, or an approved
adhesive may be used to attach the charge controller to an available  at surface.

12/24 Volt - 10 Amp SLA

SOLAR BATTERY CHARGE CONTROLLER

Part No. 1950-253

CSA Certi ed

Class 1 Div 2 Hazardous Locations

2. Run wire from the charge controller’s terminals to the battery. 18 gauge wire is
recommended if the solar panel provides 5 Amps or less charging current, or 12 gauge
wire if it provides more than 5 Amps of charging current. Strip the wire back 3 mm
(~1/8”) and insert the bare portion into the terminal, then tighten the screw until it
crimps down securely on the wire. An approved in-line fuse holder should be wired
in series between +BAT terminal of the charge controller and the positive terminal of
the battery. A 10 Amp fast-blow style fuse is recommended for circuit protection. If
the battery terminals are connected backwards the LED on the charge controller will
light indicating reversed wiring, and the charge controller will not charge the battery.

3. Run cable from the solar panel through the bottom of the enclosure or provided cable
entrance to the +IN and GND terminals on the charge controller. Strip the wire back 3
mm (~1/8”) and insert the bare portion into the terminal, then tighten the screw until
it crimps down securely on the wire. If the battery enclosure is located in a potentially
hazardous area, ensure the use of conduit or approved cable, and properly seal all
wiring entrances as required.

Designed and Manufactured by Rogue Engineering Inc.

Rogue Engineering Inc.
3860 S. Jason Street
Englewood Colorado 80110

in Englewood, Colorado, U.S.A.

1-800-364-0659 (Toll Free) 1-303-734-0706 (Phone)
1-303-734-0517 (Fax) www.rogue-engr.com
[e-mail] or [e-mail]

Document Rev. 140305

“Industry Leading Low Self Consumption”

Charging Ahead

WIRING

GND -Negative battery terminal
+BAT -Positive battery terminal

GND -Negative terminal of the solar panel
(or other source of charging power)
+IN -Positive terminal of the solar panel
(or other source of charging power)

SWITCH SETTINGS

To gain access to the switches, remove the plug-in connectors and the four screws
from the corners of the cover. There is one switch to select between 12 or 24V and
one to select between SLA or Flooded battery.

TEMPERATURE COMPENSATION

The charge controller has built-in temperature compensation. The charger should be
mounted in the battery box near the battery for optimal compensation.

REVERSE BATTERY INDICATOR

If the battery is wired with the positive and negative terminals reversed, the red
Reverse Battery LED will light. The controller is internally protected from damage from
reverse wiring on both the solar and battery terminals, but must be wired correctly to
charge the battery.

SPECIFICATIONS

Battery Voltage 12V/24V
Maximum Charging Current 10 Amps
Self Consumption 400 μA Typical (not charging)

1.8 mA Typical (charging)
Temperature Compensation -3.3mV / º C / Cell
Operating Temperature -40 to 60º C
Environmental Encapsulated
Pluggable Connectors 12 AWG Max Wire Size
Small Form Factor 2.5” x 2.5” x 0.9”

The graph above shows a charging cycle typically found when a Lead Acid Battery
has discharged overnight. The red line (upper) indicates the battery terminal voltage
and the green line (lower) indicates the charging current supplied to the battery.

For a SLA battery below 2.13 Volts per cell, the charge controller enters the fast
charge mode. The charger will supply the maximum current possible to the
battery until the terminal voltage reaches 2.45 Volts per cell. As the battery
approaches a fully charged state, the charger enters a compensation charging
mode and the charging current will taper o . When the current reaches a steady
state value, the controller will switch to the  oat charge mode. The controller
will both supply current to the load and maintain the battery at 2.35 Volts per
cell as long as charging power is available.

SLA Flooded
Fast/Compensation Mode ON Voltage ~12.8V/25.6V 12.3V/24.6V

Fast/Compensation Mode OFF Voltage ~14.7V/29.4V 14.4V/28.8V
Float Mode Voltage ~14.1V/28.2V 13.6V/27.2V

Rogue Engineering Inc.
3860 S. Jason Street
Englewood Colorado 80110

1-800-364-0659 (Toll Free) 1-303-734-0706 (Phone)
1-303-734-0517 (Fax) www.rogue-engr.com
[e-mail] or [e-mail]

For a Flooded battery the above graph also represents the typical relationship
between battery voltage and charging current during a charging cycle. Charge
voltage parameters will be sightly lower than those expressed for SLA Batteries
to minimize electrolyte evaporation.

Charging Ahead