Rich Solar 20 Amp 12V/24V MPPT Solar Charge Controller

23rd of 23 we've scored in Charge Controllers

23rd of 23 in Controllers

Rich Solar 20 Amp 12V/24V MPPT Solar Charge Controller

12/24 V auto system
20-29 A charging
2-year warranty

SVT Score, Lower

Usability3.7/10Social5.5/10The SVT Score is placed on its category's range

Versus

SVT SCORESRead review

An older 20 A, 12/24 V MPPT controller with a 20 A load output, a 100 V solar input limit and an RS232 port for Rich Solar’s add-on Bluetooth module.

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SKU: RS-MPPT20 Category: Charge Controllers Brand: Rich Solar

Usability

3.7 out of 10

Capacity220 A rated charge current, on the 20 to 29 A rung

Array: 260 W at 12 V or 520 W at 24 V maximum
Load: 20 A rated load current

Better on capacityLiTime 60A MPPT ControllerAt 60 A it sits on the 8 rung for a charge controller. $159.99Scores 8.0

Efficiency8Peak conversion of 98 percent, on the 98.0 to 98.9 percent rung

Tracking: above 99 percent MPPT tracking, not scored
No-load loss: 0.7 to 1.2 W

Operating Range5100 V maximum solar input at 25 °C, on the 100 to 149 V rung

Cold: maximum solar input falls to 90 V at -25 °C
Temperature: runs from -35 to 45 °C

Better on operating rangeLiTime 60A MPPT ControllerLiTime's spec table gives a 150 V maximum PV input. $159.99Scores 7.0

Features6Load output, custom settings; sensor and Bluetooth as add-ons

Bluetooth: BT-1 module on the RS232 port, $35.99

Verification2No record for RS-MPPT20; ETL Recognized list names RS-MPPT20P, a near-miss

Near-miss: Intertek UL 1741 REC record names RS-MPPT20P / RS-MPPT20PB, not RS-MPPT20
Claim: page names no safety standard

Better on verificationRenogy Rover Li 30A Controller$149.99Scores 4.0

Warranty & Support12 years, marked prorated; half cover in year two, one rung down

Schedule: full replacement in year one, customer pays half in year two
Condition: receipt or registration within 30 days sets the start date

Better on warranty & supportRenogy Rover Li 30A ControllerRenogy's product page. $149.99Scores 4.0

Price

List: $89.99 at richsolar.com
BT-1: Bluetooth module $35.99 at richsolar.com

Summary

Load output included, Bluetooth costs extra

What it is: an older 20 A, 12/24 V die-cast MPPT controller with a load output, for small RV, boat and cabin systems
The trade-off: a load output and high efficiency, but low current, a 100 V string limit and Bluetooth only as an add-on
Not checked: Rich Solar's manual PDF has no readable text, so box contents and the sensor's inclusion rest on the spec sheet
Look elsewhere for: arrays above about 520 W, built-in Bluetooth or a 48 V bank

Strengths

Load output with timer and light control
High conversion efficiency
Recovers over-discharged lithium batteries
Die-cast case sheds heat
Custom charge settings

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Drawbacks

Low charge current for larger arrays
Bluetooth needs the BT-1 add-on
Low string voltage limit
Short, prorated warranty
Case suited to dry locations only

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Social score

5.5 out of 10

RedditBrand-level4 out of 10

Scope: few Reddit threads name Rich Solar, and those found are complaints
Battery: an r/SolarDIY owner's new ALPHA 5 read 6.7 V instead of 48 V, and Rich Solar's technician had not returned his call after two days (August 2023)
Order: an r/SolarDIY buyer waited from March for an out-of-stock ground mount, then was told its price had risen from $180 to $699 and cancelled; the refund took months (May 2025)

GoogleBrand-level5 out of 10

Panels: DIY Solar Forum owners of Rich Solar 100 W panels reported them working as rated, one saying eight of them each pushed more than 100 W (August to September 2020)
Defects: an owner of 20 of the 100 W poly panels saw faint snail trails after a summer and found one with a broken diode wire (January 2021)
Controller: another found Rich Solar's MPPT controller OK but its setup and Bluetooth app in need of work (January 2021)
Warranty: a DIY Solar Forum owner reported Rich Solar cut its CIGS panel warranty from 5 years to 1 in 2021 (June 2026); an Escape Forum owner waited six weeks on a warranty claim (August 2024)

YouTubeBrand-level6 out of 10

Will Prowse: in a test of several panels a Rich Solar 200 W mono gave 157 W, 78.5 percent of rating, and a 100 W poly 88 W; he kept the poly first on his list for a small panel (May 2021, about 366,000 views)
Disclosure: Will Prowse states every video includes paid promotion or free product and some links are affiliate links

Amazon7 out of 10

Liked

Easy installation, 12 of 14 mentions
Worked out of the box on AGM, per one owner
Full set of manual settings, per one owner

Complaints

Weak manual, per two owners
LCD went dark after two years, per one owner
Faulty unit and poor service, per one owner

Read the full summary

Rating: the RICH SOLAR 20A MPPT listing shows 4.4 stars from 305 ratings, 70 percent five-star and 7 percent one-star (October 2026)
Installation: Amazon's summary counts 14 reviewers on installation, 12 of them positive
Setup: an owner with a 35 Ah AGM battery said it worked out of the box with no adjustments and liked the icon display (February 2020)
Failure: an owner said his first unit's LCD went dark after two years; the replacement had run six months (June 2023)
Manual: that owner and a boat owner (June 2019) both called the manual weak on the display menus
Service: one review is titled faulty product and poor customer service, for a unit bought in April 2023 (July 2025)

User reviewsNot scored

The retailer pool is blank: no US retailer listing carries ten native reviews of a Rich Solar product, and its Walmart listings hold none or one.

Trustpilot

Trustpilot rates richsolar.com 3.2 from 2 reviews, one three-star and one one-star, on a page claimed in October 2023 with no recent invitations (October 2026).

Track record

The BBB rates Rich Solar of Ontario, California an F, not accredited, on 5 complaints closed in three years (October 2026).
No CPSC or Health Canada recall names Rich Solar, searched in October 2026.
Brinkley RV's NHTSA recall 25V042000 (January 2025) replaced an overheating Rich Solar MPPT solar charge controller in up to 1,723 Model G trailers.

Not countedExcluded

Not counted in any pool: the testimonials on richsolar.com, the RICH SOLAR TALK YouTube channel, Rich Solar's Facebook pages and groups, and any brand-run subreddit.
Also not counted: Rich Solar's affiliate program and creator collaborations, dealer pages, and Explorist.life, whose co-branded panel ties it to Rich Solar.

Summary

Brand-level

3.2 on Trustpilot, an F from the BBB

Specs

CapacityNot applicable
AC OutputNot applicable
System Voltage12/24 V auto
Panel PowerNot applicable
Charge Current20-29 A
Safety ListingNone verifiable
Cell TypeNot applicable
Low-Temp ChargingNot applicable
Warranty2 Years
MonitoringBluetooth add-on
Weight3.1 lb

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At a glance

8.27 x 5.94 x 2.34 in
LCD plus LED indicators
RS232 port
Takes up to 10 AWG wire

Company

Rich Solar is the brand of Rich Solar Inc., which says it began in 2005 and keeps its offices and warehouse in Ontario, California.

Where it sells

It sells with a cart at richsolar.com, through a RICH SOLAR Amazon brand store run by the seller SUNRICH ENERGY, on Walmart, and through dealers such as Outbound Power.

Description

The Rich Solar 20 Amp MPPT Solar Charge Controller (model RS-MPPT20) is an older die-cast MPPT controller for 12 V or 24 V batteries, still sold alongside the BRAVO line.

It charges at up to 20 A, runs a 20 A load output, takes up to 100 V open-circuit at 25 °C (90 V at -25 °C) and a 25 A short-circuit current, and is rated for 260 W of solar at 12 V or 520 W at 24 V.

Rich Solar rates MPPT tracking above 99 percent and conversion at up to 98 percent, with a no-load loss of 0.7 to 1.2 W and a tracking window from battery voltage plus 2 V to 75 V.

It handles Sealed, Gel, Flooded and Lithium batteries with customizable settings, can charge over-discharged lithium batteries, and has an LCD with LED indicators, a temperature-sensor connection and an RS232 port. Bluetooth needs the BT-1 module, $35.99 at richsolar.com.

The IP32 die-cast aluminum case measures 8.27 x 5.94 x 2.34 in, weighs 3.08 lb and takes up to 10 AWG wire.