Regulators / CH150
CH150 12 V Charging Regulator
ETL-Listed Charging Regulator
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Overview

The CH150 is a charging regulator for an external rechargeable 12 V VRLA (valve-regulated lead-acid) battery, such as the BP12 or BP24 offered by Campbell Scientific. Charging power for the CH150 is typically supplied by an unregulated solar panel, AC/AC transformer, or AC/DC converter. The CH150 provides charging with temperature compensation for optimal charging and battery life. A maximum power point tracking algorithm is incorporated for solar inputs to maximize available solar charging resources.

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Benefits and Features

  • Protects against high-amperage and high-voltage damage to power supply
  • Battery reversal protection
  • Allows simultaneous connection of two charging sources (e.g., solar panel, ac wall charger)
  • ETL listed Class 2 power supply

Images

CH150 front view
CH150 front view
CH150 front view
CH150 back view
CH150 left view
CH150 right view
CH150 top view
CH150 bottom view

Detailed Description

The CH150 is a micro-controller-based smart charger with temperature compensation that optimizes battery charging and increases the battery's life. Two input terminals enable simultaneous connection of two charging sources. They also incorporate a maximum power point tracking algorithm for solar inputs that maximizes available solar charging resources.

The CH150 has several safety features intended to protect the charging source, battery, charger, and load devices. Battery-reversal protection is included, as well as ESD and surge protection on all of the CH150 inputs and outputs.

The CH150 replaced the CH100. 

Specifications

Operational Temperature -40° to +60°C (VRLA battery manufacturers state that “heat kills batteries” and recommend operating batteries at ≤ 50°C.)
Dimensions 7.5 x 3.7 x 10.0 cm (3 x 1.5 x 3.9 in.)

CHARGE - CHARGE Terminals (AC or DC Source)

AC 18 to 24 VRMS (internally limited to 1.2 ARMS)
DC 16 to 40 Vdc (internally limited to 0.85 Adc)

SOLAR Terminals (Solar Panel or Other DC Source)

-NOTE- Battery voltages below 8.7 V may result in < 3.0 A current limit because of fold-back current limit.
Input Voltage Range 15 to 40 Vdc
Maximum Charging Current 4.0 Adc typical (3.2 to 4.9 Adc depending upon individual charger)

Quiescent Current

No Charge Source Present 160 μA at 13.7 Vdc
No Battery Connected 930 μA at 30 volt input voltage (ac or dc)

Battery Charging

FLOAT Charging Vbatt(T) = 13.65 V - (24 mV) x (T - 25) + (0.24 mV) x (T - 25)2
Accuracy ±1% (on charging voltage over -40° to +60°C)

Power Out (+12 Terminals)

Voltage Unregulated 12 V from battery (4.65 A solid-state circuit breaker)
Standards ETL Listed Class 2 power supply

Compatibility

Solar Panels

SP5-L SP10 SP10R SP20 SP20R SP50-L SP90-L

Datalogger Considerations

Compatible Contemporary Dataloggers

CR200(X) Series CR800/CR850 CR1000 CR3000 CR9000X CR6
*

Compatible Retired Dataloggers

CR500 CR510 CR10 CR10X 21X CR23X CR5000 CR7X CR9000
* *

Note:
*Typically, a CR23X, CR3000, or CR5000 datalogger uses its integrated rechargeable base instead of the CH150. However, the CH150 can be used if the datalogger has a low-profile base or if the battery base has been disconnected.

Enclosure Considerations

A desiccated, non-condensing environment is required. The CH150 includes built-in keyhole flanges for mounting to the backplate of a Campbell Scientific enclosure.

Compatible Enclosures

ENC10/12 ENC10/12R ENC12/14 ENC14/16 ENC16/18

Adapters

The CH150 is compatible with the A100 null-modem adapter and the A105 adapter for additional 12 V output terminals. The A100 Null Modem Adapter connects and powers two Campbell Scientific peripherals via two CS I/O 9-pin connectors configured as a null modem. This is useful in linking different communications technologies, such as telephone to radio, at sites that do not have a datalogger. The A105 adapter may be used to provide additional 12 V and ground terminals where the power supply is used to power several devices.


Frequently Asked Questions

Number of FAQs related to CH150: 1

  1. The CH150 or PS150 will pull power only from the source with the highest voltage at that moment. For example, the regulator will take the 20 W input from the 24 Vdc wall transformer rather than from the 18 V 50 W solar panel—even during the day. If the power goes out, the 50 W solar panel will charge during the day with no charging at night.


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