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Flexcharge™ PV14-12 14A Charge Controller for Photovoltaic Charging Systems 

  PV14 Photo

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The PV14  is a cost effective shunting regulator designed for 12V Solar Only applications with a maximum solar charging current of 14A.   The PV14 controller is easily expandable to handle charging currents up to 100A or more.  We engineered this controller to be extremely efficient, accurate, and small (3" x  4.75").  It is Ideal for use in a marine environment. Use with Lead Acid flooded, AGM, or Gel battery technologies.   Do not use on Lithium batteries of any type.  Like the NC25A it also uses only 4mA to operate its circuitry.  This controller is not for use with outboard motors or any generator based charging system unless it is expanded.

Efficiency
The PV14 is an all solid state design using the highest efficiency components.   All shunting type regulators must use a blocking diode in the charging path to block the battery voltage when the controller is regulating.  The heat sink on the PV14 is used to dissipate the heat generated by the components when the controller is shunting and the battery can no longer take any more charge.   
Dependability
We took great care to design the PV14 for long term operation in unattended locations; extensive transient voltage protection;  high steady state voltage protection (it is not affected by continuous charging input voltages up to 50V, the point where the transient voltage protection activates); fully sealed electronics for 100% humidity operation; etc...  The PV14 is designed for Install and Forget operation. 
 
Simple to Operate
The PV14 includes an easy to read Charge Indicator.  The peak charge voltage is factory set so there are no user adjustments to contend with.  System wire connections are made by connecting to the controllers wire pigtails either by soldering or via a terminal strip.

Easy Upgrades
Upgrading the controller to regulate form 30 up to 500 amperes can be accomplished easily and  is relatively inexpensive. Expansion Kits    Contact Flexcharge for details.

Charging Algorithm Explained
This is the charging process used by all Flexcharge controllers.  It has many benefits including greatly reduced gassing during charging and it allows for micro equalization of Lead acid as well as Gel battery technologies.   Click on the link for more details.

Features 

  • 100% Waterproof electronics for mounting in a marine environment. 
  • Uses Super High Efficiency Solid State Surface Mount Components. 
  • Oversize heat sink to keep the internal components cool . 
  • Circuit is machine assembled in the USA to ISO 9000 standards. 
  • Internal Precision Voltage Reference for high accuracy voltage regulation. 
  • Charging Indicator. 
  • 14 amp charging capacity for small to intermediate size solar arrays. 
  • Expandable to handle 35A, 60A or 100A of charging current, and multiple charging sources. Expansion Kits
  • 35A, 60A, or 100A Charge Divert option. 
  • Consumes less than 5mA while charging and only 2.6mA at night. 
  • Built in Isolation prevents nighttime back flow of electricity from your batteries to the solar panel(s). 
  • Uses Energy State Taper charge algorithm for fast battery charging and super low battery electrolyte depletion. Looks for the full charged resting voltage of the battery to protect against overcharging. 
  • Charges a Zero Volt battery with full charge current. Most controllers will not charge a zero volt battery.
  • No power wasting sample periods. 
  • Completely silent operation. 
  • UL listed encapsulation. 

OPTIONS
EXPANDEDABLE FOR HIGH CAPACITY or MULTIPLE CHARGING SOURCES 


PV14 Operating Characteristics 
 
12V Units 
24V Units Custom order 
Parameter 
MIN. 
TYP. 
MAX. 
MIN. 
TYP. 
MAX. 
INPUT VOLTAGE
(BAT or PV) 
0V 
- 
30V 
0V 
- 
50V 
PROGRAMMED OVERSHOOT VOLTAGE
(MICRO - EQUALIZATION) 
- 
- 
16.3V 
- 
- 
32.6V 
CHARGING CURRENT 
4mA 
- 
15A 
4mA 
- 
15A 
CONTROLLER STANDBY CURRENT (NIGHT) 
2mA 
2.6mA 
3mA 
2mA 
2.6mA 
3Ma 
CONTROLLER STANDBY CURRENT (Charging) 
4mA 
5mA 
6mA 
4mA 
5mA 
6mA 
CHARGE DISCONNECT VOLTAGE
(Regulation Voltage) 
14.20 
14.25V 
14.30V 
28.40V 
28.50V 
28.60V 
CHARGE RECONNECT VOLTAGE 
13.50V 
13.60V 
13.70V 
27.00V 
27.20V 
27.40V 
VOLTAGE DROP ACROSS CONTROLLER 
0.2V 
0.4V 
0.56V 
0.2V 
0.4V 
0.56V 
TRANSIENT SURGE SUPPRESSION

-



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600W



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-



600W



HUMIDITY 
5% 
60% 
100% 
5% 
60% 
100% 
OPERATING TEMPERATURE 
-40°C 
25°C 
60°C 
-40°C 
25°C 
60°C 
CASE SIZE 
H=1.2" W=4.75" L=3.0" 

Charging Efficiency Graph
Charging Algorithm Explained
 

PV7-PV7D-PV14 full 2012.pdf  PV14 short form manual.pdf

Where to buy

 Flexcharge™ controllers are the controllers of choice for research projects around the world.

Sensitive data recording equipment is not affected by the Flexcharge Controllers because there is no RFI generated in the controller as is common on many others.

Extremely high efficiency was a design goal for all Flexcharge controls.  Little or no heat is dissipated from the controllers so all of the generated energy can be used.

No matter if your system is a simple battery maintenance system or a large main power source, you will benefit from the efficiency and dependability of our products.