The CH200 is microcontroller-based smart charge controller that is ideal for an external rechargeable 12 Vdc VRLA battery such as Campbell Scientific's BP12 or BP24. The controller manages amperage and voltage for safe, optimized battery charging from a solar-panel or ac power source. It also measures various input, output, and status parameters to allow close monitoring of the battery.Read More
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The CH200 has two input terminals that enable simultaneous connection of two charging sources. It also incorporates a maximum power point tracking algorithm for solar inputs that maximize available solar charging resources. RS-232 and SDI-12 terminals allow the CH200 to convey charging parameters to a datalogger.
The CH200 has several safety features intended to protect the charging source, battery, charger, and load devices. Both the SOLAR – G and CHARGE – CHARGE input terminals incorporate hardware current limits and polarity reversal protection.
A fail-safe, self-resettable thermal fuse protects the CHARGE – CHARGE inputs in the event of a catastrophic AC/AC or AC/DC charging source failure. Another self-resettable thermal fuse protects the 12 V output terminals of the charger in the event of an output load fault.
The CH200 also has battery reversal protection, and includes ESD and surge protection on all of its inputs and outputs.
1 - VRLA battery manufacturers state that “heat kills batteries” and recommend operating batteries at ≤50°C.
2 - Battery voltages below 8.7 V may result in less than 3.0 A current limit because of fold-back current limit.
3 - Two-step temperature compensated constant-voltage charging for valve-regulated lead-acid batteries; cycle and float charging voltage parameters are programmable with the default values listed.
4 - Impulse type changes in current may have an average current error of ±(10% of reading + 2 mA).
5 - 1.0 V negative offset is worst-case due to reversal protection diode on input; typical diode drop is 0.35 V.
6 - 2.0 V negative offset is worst-case due to two series diodes in AC full-bridge. Typical diode drops are 0.35 each for 0.7 V total.
The CH200 can charge the following battery families: EnerSys Genesis/Yuasa NP Series (includes our PS200, BP12, and BP24), EnerSys Cyclone Series, Concorde Sun Xtender Series (includes our BP84) and a custom battery.