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Solar Battery Chargers and PV System Controllers |
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One of the problems with solar
power is that the output of the solar panel is variable. These solar charge controllers are
designed to extract the maximum amount of power available from the solar panels and deposit it
in the battery. Solar PV charge controllers take the uncertain voltage from a solar panel and
condition it to safely charge lead acid batteries. These solar PV charge controllers energy
harvesting, and a three-stage charging method, bulk, absorption, and float (maintenance)
charge, but due to the nature of solar panels these are different in nature than a typical AC
driven charger. They pulse charge the battery. During the pulse the solar panel is virtually
short-circuited to extract the maximum power from the panel and also to allow the panel to work
more efficiently. These solar charge controllers also protect your panels from discharging
through the batteries after the sun goes down. Solar charge controllers are necessary to
protect your PV battery investment.
The SBC-6112 is the less expensive version of
the solar PV charge controllers. It regulates the power from the solar panels and controls the
charge of the batteries. It also cuts out the batteries from the load when the lead acid
batteries are depleted to prevent damage to the battery. It has an LED bar readout to show the
status of the solar charging system and batteries. The manual for the SBC-6112 solar PV charge
controller can be read by clicking on the link below.
The SBC-7112 solar PV charge
controller has the same functionality as the SBC6112, and also has several new features. It has
a liquid crystal (LCD) display, which gives allows the user to display system information, such
as the battery voltage, PV panel voltage, input current, total amp-hours during the day, and
total amp hours for one or two days previous. It also allows the fill and float charging
voltages for the battery charger to be changed by a series of dip-switch settings. The manual
for the SBC-7112 solar PV charge regulator can also be read by clicking on the link
below.
Both solar PV charge controllers have the capability of temperature compensation
of the battery charging algorithm with a thermistor that can be put on the
battery.
These solar charge controllers also have system functions, for example dusk
detection which can be used to turn on the load connected to the DC output at dusk, and turn
off the load to prevent the batteries from being over-dischsarged. They have very low quiescent
current draw, which means that when the solar panels are not producing enough power to charge,
and when the battery current is not called for, the system can sleep without draining the
batteries.
- Microcontroller based pulsed charging system and
three-stage solar charging algorithm.
- Bulk, Absorption & Float Charge LED
indications.
- 5 State LED Indications of battery levels.
- Electronic Overcharge Protection & back
current blocking to PV panel.
- Over temperature Protection of PV Charge Controller's
electronic circuit.
- Automatic dusk detect & On-Off operation at DC output.
- 25% 5 minute overload capability on charge
- 60% 5 minute overload on discharge
- Low voltage battery disconnect and reconnect at DC output.
- Temperature compensation option built in.
- Over-discharge protection at DC output.
Read the Complete Solar Photovoltaic
Control Charger SBC-6112 Manual, Click Here
Read the Complete
Solar Photovoltaic Control Charger SBC-7112 Manual, Click Here
| Model |
1-10 |
10-99 |
100+ |
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| SBC-6112 |
$49.00
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$48.00 |
$46.00 |
In Stock |
| SBC-7112 |
$72.00
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$69.90 |
$64.00 |
In Stock |
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| Lead Acid Battery Voltage |
12 VDC |
| Maximum Solar PV panel open circuit voltage |
26 VDC |
| Continuous charge/load current |
12 A |
| Maximum solar charge current (5 mins.) |
15 A |
Maximum load current (5 mins.)
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20 A |
Standby quiescent current (no load or PV)
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30 mA |
Voltage across terminals (PV to Battery)
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0.6 V |
Voltage across terminals (Battery to Load)
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0.3 V |
Electronic Blocking of solar panel from
battery
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Yes |
Battery Reverse Polarity Protection
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Yes |
Overcharge & Over-discharge
Protection
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Yes |
Battery status LED indication
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5 - State LED indications |
PV Charging status LED indication
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3 - State LED indications
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Liquid Crystal Alphanumeric Display
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Recommended Wire Size
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#12AWG to #10AWG
depending on distance from solar panel and batteries to charge controller.
Click on link for a wire size calculator
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Regulator/controller Weight
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0.44 kg |
0.47 kg |
Dimension
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150(W) x 85(D) x 45(H) mm
6(W) x 3 3/8 (D) x 1 3/4 (H)
inches |
Fuse
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20 A
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Operating Ambient Temperature for charge
controller
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-10 to 50 °C
-14 to 122 °F |
| Over Temperature Protection |
Yes |
| Battery charging float voltage setting |
Factory Preset 13.5 V |
Adjustable from 12.0 - 15.0 V |
| Battery charging bulk voltage setting |
Factory Preset 14.0 V |
Adjustable from 12.0 - 16.0 V |
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PowerStream Technologies: 1163 S.
1680 West. Orem Utah 84058
Phone: 801-764-9060
Fax: 801-764-9061
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© Copyright 2000, 2002, 2003, 2005, 2006, 2008, 2009,
2011, 2012 Lund Instrument Engineering, Inc. All rights reserved This material is
copyrighted original work. It is forbidden to use this information, text, or graphics in full
or in part on another web site without written permission. This prohibition includes making
derivative text using automatic thesaurus substitution software. |
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