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SM-312/314 Solar Battery Charge Controller +455W Solar Panel


There are 2 kinds of Solar Charge Controllers, PWM and MPPT for various Combinations!

1. SM-314-20A: For a 24V System – < 480W Battery system

It’s better to use a PWM 20A controller
And we have SolarHome 455W panel bundle together , can be a less than 455W/24V system
for all kinds of DC24 Load with battery back up!
24V batteries should be used with solar panels capable of generating 36V-50V
With 24V batteries, the maximum panel voltage must not exceed 50V
Maximum Power Input:20A
Model 12V: 240W (MAX),  24V: 480W (MAX)
Operating Temperature: -35 ~ +60C
Storage Temperature: -35 ~ +60C
Dimension: 6″ x 3″ x 2″
Weight: 6 Oz

2. SM-312-20A: For a 48V System – < 2800W Battery system

Use a MPPT 60A Charge Controller to monitor 3 x 455W Solar panels.
So buyers can set up a 48V battery backup system for all kinds of DC48V Load.
e.g. Like our 48VDC Solar Air Conditioners
Dimension: 8.43″ x 4.53″ x 1.97″
Weight:  2.65 lbs
Max PV input: 48V System – 2800W
Max PV input Voltage: 48V System: 190V
This is 2022 new model, max input 190V, so no need to use a Combiner Box
For 3 x 455W Solar Panels, max voltage @41.1V, total 123.3V
For 4 x 455W Solar Panels,       ”                          , total 164.4V
Even in Summer, the Voltage floats to 47~49V, the new MPPT charge controller can handle the higher influx during peak hours

3.455W Solarhopme PERC Mono Solar Panels

Dimension: 82″x41″x 1.38″
Weight: 56 lbs
Vmax: 41.1V
Voc: 49.8V
Imax: 11.08A
Isc: 11.61A

4. Delivery:

Please note, we can only ship the charge controllers but solar panels – local pickup only!



– Local Pick up Only!!


5.Federal Income Tax 30% Credit for Residential Solar System & Equipment:

In the Inflation Reduction Act of 2022, the tax credit will begin at 30% and step down to 26% in 2033 and 22% in 2034.

==>Download form from this link and give to your accountant

2022~2032: 30%
2033: 26%

2034: 22%

New Features:

  1. Included Storage Investment, either combine with solar or separately
  2. Tax Credit Deduction can be extended to Next year if the first year tax amount is lower than credit.


6.PWM or MPPT Charge Controllers

There are 2 kinds of Solar Charge Controllers, here is a good article to read


Use this chart to decide which controllers suitable for your systems

Weight N/A
Dimensions N/A
Battery Voltage

20A+24V PWM Charge Controller, 60A+48V MPPT Controller, 24V+480W Solar System, 48V+3x455W Solar System


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