- Product Dimensions: 16.9 x 8.3 x 11.8 cm ; 26.2 Kg
- Shipping Weight: 26.2 Kg
- ASIN: B00N2F3R8C
- Date first available at Amazon.ca: Oct. 19 2014
- Average Customer Review: Be the first to review this item
EPsolar Tracer 2210RN MPPT Solar Battery Charge Controller 20A+Remote Meter MT5
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"Description of MPPT 20A:
Tracer series controller adopts latest MPPT technology (Maximum Power Point Tracking) and advanced tracking algorithm to make the solar module operate at ideal voltage which the solar modules can product the maximum available power. Compared to conventional PWM controller, MPPT technology increases the charge efficiency up to 30% and potentially decrease the power of solar array needed. The ability to step-down the higher voltage solar module to recharge a lower voltage battery bank greatly increases system design flexibility. The cable size can be reduced because of the small current from the solar array.
Specifications of MPPT 20A:
Rated system voltage:12/24V auto work
Rated battery current :20A
Rated load current:20A
Max battery voltage:32V
Max.PV open circuit voltage:100VDC
Max.PV input power:12V 260W; 24V 520W
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Most helpful customer reviews on Amazon.com
I have found the problem in 2 of my solar panels not having Schottky bypass diodes installed by the manufacturer. Thus a shaded panel or cell blocks the ENTIRE PANEL LOOP CURRENT, but the voltage remains the same! This cannot be diagnosed readily from the MT-5 display because it does not show solar amps - only solar volts.
With the bypass diodes installed and a sunny day, I'm now getting 75 solar volts and 3.5 solar amps going into the controller and getting 15 battery amps. I'm using a DC ammeter on the solar input to measure the current.
I would encourage the manufacturer to update the control software so that solar amps are displayed. This would save much time in troubleshooting problems. Until then, I recommend an "outboard" Volt/Ammeter:
DROK S Digital Multimeter DC 6.5-100V 20A Voltage Amperage Power Energy Meter DC Volt Amp Tester Gauge Monitor LCD Digital Display
This to be wired between the panels and the charge controller for a constant update in solar volts and solar amps.