RICH SOLAR 40 Amp An MPPT Solar Charge Controller Review: Bluetooth RS232 Port for Smartphone App Pairing

What the RICH SOLAR 40 Amp Is, and Who For

RICH SOLAR 40 Amp MPPT Charge Controller pushes 40A into the battery bank for buyers who need a 40A controller.

For a weekend RV setup with roof panels, a 40A controller gives you enough charging headroom for fridge, lights, and phone charging.

RICH SOLAR 40 Amp pairs that 40A output with MPPT tracking, which is the main reason it fits buyers building a 12V or 24V solar bank. It also states remote meter support, Bluetooth RS232 communication, and battery temperature measurement.

We screened 83 MPPT solar charge controllers and chose 15 for full review. This one has 571 buyer ratings, the 7th most of the 83 screened, and full reviews go to the most-rated products that pass screening, at most 2 per brand. If you need flooded battery support and want an LCD readout, those are stated here; the 100 VDC PV limit is the other number to compare against your array.

The Short Answer on the RICH SOLAR 40 Amp

Best for: you want a 40A MPPT solar charge controller for a 12V or 24V battery setup, with Bluetooth monitoring and flooded-battery support.

Choose the RICH SOLAR 40 Amp if you want those controls and a 100 VDC PV input limit for around $119.99.

• Pro: 40A charge current gives you enough output for a 12V RV battery bank from rooftop panels.
• Pro: 100 VDC max PV input keeps the array side within a clear voltage limit for many small off-grid builds.
• Pro: Bluetooth, LCD display, and remote meter support give you multiple ways to track charging status.
• Con: The battery system voltage is 32V, so it does not fit every bank architecture and rules out setups that need a different nominal voltage.
• Con: The listing states flooded battery selection, so buyers who want a different battery profile need to confirm that before ordering.

Don’t buy this if: your array can exceed 100 VDC open-circuit, because this controller is not the right fit for that higher-voltage panel string.

Price assessment: $119.99 is a fair price for a 40A MPPT controller with Bluetooth, LCD, and remote monitoring support.

For mobile power needs, explore top rated mppt solar charge controller for van life options.

The Numbers on the Spec Sheet

Max PV input voltage separates this RICH SOLAR 40 Amp most clearly. That value measures the highest open-circuit solar array voltage the controller can accept without damage.

Before You Buy: an MPPT solar charge controller Checklist

The first thing to check is your battery bank voltage, because this controller states 12V and 24V automatic detection, plus a 32V battery system rating.

• ☐ Confirm your bank is 12V or 24V — the controller states automatic detection for those system voltages, and a different bank voltage leaves you with a mismatch you cannot fix by ordering this unit.
• ☐ Check your panel string voltage — the controller states a 100 VDC PV input limit, and a higher string can overvolt the unit and force a replacement.
• ☐ Measure your planned charging current need — this model states 40A, and a larger charging load will leave capacity undercharged and waste available solar power.
• ☐ Confirm your battery chemistry selection — it states support for Sealed, Gel, Flooded, and Lithium deep cycle batteries, and an unsupported bank means you may need a different controller.
• ☐ Budget for monitoring features you want — it states Bluetooth, LCD display, and remote meter support, and skipping that check can leave you without the control interface you expected.
• ☐ Check the mounting space against its size — it measures 9.37 x 6.81 x 2.85 inches and weighs 4.66 pounds, and a cramped install area can force you to relocate or return it.

Do not buy this controller if your system is not 12V or 24V, or if your solar string can exceed 100 VDC.

What Performance in Practical Terms Means

How Charging Efficiency Fits Practical Use

40A is enough for a 12V RV battery bank from rooftop panels, so the RICH SOLAR 40 Amp suits setups that need moderate daytime charging rather than a small trickle. Its 40A charge current is the figure that matters here, because that number sets how much charging current the controller can send into the battery.

Do you want a controller that can keep up with a weekend RV fridge, lights, and phone charging from solar? The 40A rating is enough for that workload, and it also gives you room for a 24V off-grid system at the easier end of the charging range. The 98% peak conversion efficiency and MPPT design matter for budget-minded buyers because they describe how much of the array’s available power the controller can process, not battery size or panel count.

Which Battery Types and Voltages Work

RICH SOLAR 40 Amp works with 12V and 24V battery banks, so you need to match your bank voltage before you order. Its automatic detection of DC system voltages helps with the voltage side of the decision, while the supported battery types include Sealed, Gel, Flooded, and Lithium deep cycle batteries.

The battery type selection is set to Flooded, and that matters if you want a controller that still gives you a specific charging profile choice. If your bank is not one of the supported types, this controller is the wrong fit regardless of the 40A rating. The 32V battery system voltage is the key number for system matching, so buyers with other bank architectures need a different controller.

How Monitoring and Protection Support Charging

Monitoring and protection are useful here because the controller states LCD display, Bluetooth communication, remote monitoring capability, and temperature compensation. Those features let you follow charging status, pair with a smartphone app, and keep battery temperature in view while the controller handles charging for a compatible bank.

The protection list covers overcharging, over-discharging, overload, short circuit, and reverse protection for any combination of solar module and battery. That gives you a controller aimed at systems where you want visible status and basic fault coverage, not just charging current. The Bluetooth RS232 port with BT-1 module support matters if you want app pairing, while the LCD gives you local status without adding another component.

Common Buyer Jobs Checked Against the RICH SOLAR 40 Amp’s Specs

The RICH SOLAR 40 Amp against the jobs buyers ask about, worked out from its listed max charge current and a typical need for each job.

If you are confused by technical jargon, see how MPPT solar charge controller terms and specs work in plain English.

Where the RICH SOLAR 40 Amp Sits Among the Alternatives

When you are comparing 40A MPPT controllers for a 12V or 24V array, the RICH SOLAR 40 Amp gives you 40A, 100 VDC input, and a 32V battery system at the same $119.99 price as every rival here.

• Tracer4210AN matches this unit at 40A, so the deciding difference is not charge current. Its 4.5 rating across 389 buyer ratings is also higher than the 4.3 average across 571 ratings here.
• The PowMr model is the only rival here with a 60A charge rating, so it gives you more charging headroom for larger arrays. That matters if you want current capacity over the 40A ceiling on this unit.
• Ampinvt lists 150V PV input, while this controller states 100 VDC. If your array needs longer series strings, that higher input limit is the relevant difference.
• Renogy Commander lists 12V/24V battery support, while this controller states 32V. If you need a standard 12V or 24V bank, Renogy states the clearer match.
• EPEVER 40A MPPT Solar Charge Controller also states 40A, so the current rating ties again. The comparison then moves to the extra features, where this model states Bluetooth, remote meter support, and temperature compensation.

If you want a standard 12V or 24V controller and do not need the 32V battery system, the Renogy Commander is the cleaner pick. It states the more familiar battery-voltage support for that use case.

What It Takes to Run the RICH SOLAR 40 Amp

What you need before the RICH SOLAR 40 Amp can charge

A 12V or 24V battery bank must already be in place. Without that bank, the controller has nothing to regulate.

1. Confirm the battery bank voltage is 12V or 24V before you order cables or set the controller.
2. Choose battery cables sized for the battery-bank connection; the listing does not state cable gauge.
3. Match the PV wire to the controller’s 100 VDC solar input limit so the array stays within its input voltage rating.
4. Set the battery type to Flooded if that is the bank you are using; the controller also states support for Sealed, Gel, and Lithium deep cycle batteries.
5. Use the LCD and Bluetooth RS232 port to confirm the charging settings once the system is live.

Warranty and support: what to check after delivery

Cover varies by seller and country.

• Confirm the return window for the controller body, because the unit weighs 4.66 pounds and replacement shipping can add cost.
• Confirm support for a 40A fuse or breaker, because both must match the controller’s charge-current rating.
• Confirm that the seller accepts returns for a unit with Bluetooth pairing or LCD issues, because those are part of the controller’s monitoring and setup path.
• Confirm whether the seller covers temperature-compensation faults, because the controller states battery temperature measurement capability.

On arrival, photograph the box, the controller, and the label before you install anything.

Questions Buyers Ask About This PV charge controller

Can I use RICH SOLAR 40 Amp with lithium batteries and still charge them correctly?

Yes, the RICH SOLAR 40 Amp is listed as compatible with lithium deep cycle batteries. It also states customizable charging voltages, which matters because lithium charging depends on the controller’s battery settings. The listing does not state the exact lithium profile values.

What battery types does RICH SOLAR 40 Amp support?

RICH SOLAR 40 Amp supports sealed, gel, flooded, and lithium deep cycle batteries. That range covers common 12V and 24V off-grid battery banks, since the controller also states automatic detection of those system voltages. Battery type selection is listed as flooded, so you should confirm your own battery chemistry before ordering.

How much solar input can RICH SOLAR 40 Amp take?

RICH SOLAR 40 Amp is rated for 100 VDC of PV input and 40A of charge current. That combination suits a 12V RV battery bank from rooftop panels, and it also fits a weekend RV fridge, lights, and phone charging setup that needs 20 to 30A. The 100 VDC limit is the figure that matters if you plan longer series strings.

Does RICH SOLAR 40 Amp have monitoring features?

RICH SOLAR 40 Amp includes Bluetooth, an LCD display, and remote monitoring capability. The Bluetooth RS232 port for a BT-1 module gives you app pairing support, while the LCD gives local status without extra hardware. A die-cast aluminum body is also listed, which helps explain the 4.66-pound weight.

What should I check before buying RICH SOLAR 40 Amp?

Measure your battery bank voltage and match it to the controller’s 12V/24V automatic detection. You should also confirm that your array stays within 100 VDC open-circuit input, because that is the voltage limit that protects the controller. The 9.37 x 6.81 x 2.85 inch size matters if your mounting space is tight.

Is the RICH SOLAR 40 Amp Right for You?

Who the RICH SOLAR 40 Amp suits and the jobs it is the wrong choice for, listed below with the reason for each.

Where to Buy This PV charge controller

MPPT solar charge controllers are sold by the retailers below – we do not track which of them has the RICH SOLAR 40 Amp in stock, so check availability and the current price with the retailer before making a trip.

• Home Depot (online and physical stores) — in-store returns
• Northern Tool (online and physical stores) — specialist staff
• BatteryStuff.com (online only) — specialist range
• Renogy (online only) — brand-direct specialist range
• Victron Energy (online only) — specialist range
• Walmart (online and physical stores) — broad marketplace selection
• Amazon (online only) — breadth of range

Final Verdict on the RICH SOLAR 40 Amp

You should choose the RICH SOLAR 40 Amp MPPT Controller if you need a 12V or 24V solar charge controller with Bluetooth, LCD readout, and support for flooded batteries. Around $119.99 makes it a budget-aware pick for that setup.

Its 40A charge current is the key number here. That rating supports a 12V RV battery bank from rooftop panels, and it also suits a weekend RV fridge, lights, and phone charging from solar. The 100 VDC PV input limit and 32V battery system voltage mean you still need to match the array and bank to those limits before ordering.

Skip it if: you need 48V battery support or a controller with a higher PV input ceiling for longer series strings. Choosing the wrong voltage here can force a return or a rebuild.