Manufacturer and seller images. Configuration examples may include additional equipment.
Image source: RICH SOLAR RS-DC20 20A DC-DC battery charger, the main image on RICH SOLAR's store page Paid link.Paid link. As an Amazon Associate we earn from qualifying purchases. Price as of Nov 12, 2026, 7:40 PM PST, may change
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon.com at the time of purchase will apply to the purchase of this product.
CERTAIN CONTENT THAT APPEARS ON THIS SITE COMES FROM AMAZON. THIS CONTENT IS PROVIDED ‘AS IS’ AND IS SUBJECT TO CHANGE OR REMOVAL AT ANY TIME.
RICH SOLAR's store page prints "SKU: RS-DC20"; the user manual's cover prints "MODEL: RS-DC20 / RS-DC40 / RS-DC60" and its specification table names RS-DC20 in its own column.
Official product page: 12V 20A DC-DC Battery Charger for RV, Van, Boat, Off-Grid, RICH SOLAR store page (October 9, 2026 capture) Paid link.Checked · Earlier documentOfficial user manual: RICH SOLAR DC 12V to DC 12V Battery Charger user manual, models RS-DC20, RS-DC40 and RS-DC60 (PDF, file dated 251022) Rev 251022 · Checked · Earlier documentLocation: Store page SKU line; manual cover
Documented
The manual prints "Output nominal power 250W" in the RS-DC20 column; the data sheet prints "Output Power 250W".
Official user manual: RICH SOLAR DC 12V to DC 12V Battery Charger user manual, models RS-DC20, RS-DC40 and RS-DC60 (PDF, file dated 251022) Rev 251022 · Checked · Earlier documentOfficial datasheet: RICH SOLAR DC-DC 20A / 40A / 60A Battery Charger data sheet (PDF, 2026) Checked · Earlier documentLocation: PDF page 22 (printed page 20), Technical Specifications, Output nominal power
Documented
Printed as "You will not ground the body of the DC-DC." in RICH SOLAR's RICH SOLAR DC 12V - DC 12V Battery Charger User Manual (PDF page 9). The manual applies to this model: Manual cover prints "MODEL: RS-DC20 / RS-DC40 / RS-DC60"; its fuse table has a row per model.
Official instruction manual: RICH SOLAR: RICH SOLAR DC 12V - DC 12V Battery Charger User Manual Checked · Earlier documentLocation: PDF page 9
Documented
Converted: 4 lb x 0.45359237 kg/lb, rounded to 0.01 kg
The data sheet prints "Net Weight 4.0 lb" in the RS-DC20 column (read from the rendered PDF page 2); the manual prints no weight.
Official datasheet: RICH SOLAR DC-DC 20A / 40A / 60A Battery Charger data sheet (PDF, 2026) Checked · Earlier documentLocation: PDF page 2, Specification, Net Weight
Converted
Printed as "Compatible with conventional and smart alternators."; the datasheet covers RS-DC20, RS-DC40 and RS-DC60 together and prints no solar input.
Official datasheet: RICH SOLAR DC-DC 20A / 40A / 60A Battery Charger data sheet (PDF, 2026) Checked · Earlier documentLocation: PDF page 1, Smart Alternator Integration & Starter Battery Protection
Documented
Printed as "Have at least 5cm/1.97″ of clearance on all sides and ensure some ventilation for best performance." in RICH SOLAR's RICH SOLAR DC 12V - DC 12V Battery Charger User Manual (PDF page 8). The manual applies to this model: Manual cover prints "MODEL: RS-DC20 / RS-DC40 / RS-DC60"; its fuse table has a row per model.
Official instruction manual: RICH SOLAR: RICH SOLAR DC 12V - DC 12V Battery Charger User Manual Checked · Earlier documentLocation: PDF page 8
Documented
The manual's RS-DC20 dimension drawing prints 213.0, 188.0, 79.0 mm (length, height, depth; read from the rendered PDF page 7) with the note "The dimensions have a ±0.5mm tolerance." The data sheet prints "8.4 × 7.4 × 3.1 in", the same size in inches within rounding.
Official user manual: RICH SOLAR DC 12V to DC 12V Battery Charger user manual, models RS-DC20, RS-DC40 and RS-DC60 (PDF, file dated 251022) Rev 251022 · Checked · Earlier documentLocation: PDF page 7 (printed page 5), Dimensions drawing
Documented
The manual prints "Efficiency >85%, @ 14VDC, 30% load"; the data sheet prints ">85% (@ 14VDC, 30% Load)". A lower bound at one stated load, not a measured value.
Official user manual: RICH SOLAR DC 12V to DC 12V Battery Charger user manual, models RS-DC20, RS-DC40 and RS-DC60 (PDF, file dated 251022) Rev 251022 · Checked · Earlier documentOfficial datasheet: RICH SOLAR DC-DC 20A / 40A / 60A Battery Charger data sheet (PDF, 2026) Checked · Earlier documentLocation: PDF page 22 (printed page 20), Technical Specifications, Efficiency
Documented
The manual prints "Operating voltage range 10~16VDC" for all three models; the data sheet prints "Input Voltage Range 10-16VDC".
Official user manual: RICH SOLAR DC 12V to DC 12V Battery Charger user manual, models RS-DC20, RS-DC40 and RS-DC60 (PDF, file dated 251022) Rev 251022 · Checked · Earlier documentOfficial datasheet: RICH SOLAR DC-DC 20A / 40A / 60A Battery Charger data sheet (PDF, 2026) Checked · Earlier documentLocation: PDF page 22 (printed page 20), Technical Specifications, Operating voltage range
Documented
The manual prints "Output nominal power 250W" in the RS-DC20 column; the data sheet prints "Output Power 250W".
Official user manual: RICH SOLAR DC 12V to DC 12V Battery Charger user manual, models RS-DC20, RS-DC40 and RS-DC60 (PDF, file dated 251022) Rev 251022 · Checked · Earlier documentOfficial datasheet: RICH SOLAR DC-DC 20A / 40A / 60A Battery Charger data sheet (PDF, 2026) Checked · Earlier documentLocation: PDF page 22 (printed page 20), Technical Specifications, Output nominal power
Documented
Printed as "You will not ground the body of the DC-DC." in RICH SOLAR's RICH SOLAR DC 12V - DC 12V Battery Charger User Manual (PDF page 9). The manual applies to this model: Manual cover prints "MODEL: RS-DC20 / RS-DC40 / RS-DC60"; its fuse table has a row per model.
Official instruction manual: RICH SOLAR: RICH SOLAR DC 12V - DC 12V Battery Charger User Manual Checked · Earlier documentLocation: PDF page 9
Documented
Converted: 4 lb x 0.45359237 kg/lb, rounded to 0.01 kg
The data sheet prints "Net Weight 4.0 lb" in the RS-DC20 column (read from the rendered PDF page 2); the manual prints no weight.
Official datasheet: RICH SOLAR DC-DC 20A / 40A / 60A Battery Charger data sheet (PDF, 2026) Checked · Earlier documentLocation: PDF page 2, Specification, Net Weight
Converted
Printed as "Compatible with conventional and smart alternators."; the datasheet covers RS-DC20, RS-DC40 and RS-DC60 together and prints no solar input.
Official datasheet: RICH SOLAR DC-DC 20A / 40A / 60A Battery Charger data sheet (PDF, 2026) Checked · Earlier documentLocation: PDF page 1, Smart Alternator Integration & Starter Battery Protection
Documented
Printed as "Have at least 5cm/1.97″ of clearance on all sides and ensure some ventilation for best performance." in RICH SOLAR's RICH SOLAR DC 12V - DC 12V Battery Charger User Manual (PDF page 8). The manual applies to this model: Manual cover prints "MODEL: RS-DC20 / RS-DC40 / RS-DC60"; its fuse table has a row per model.
Official instruction manual: RICH SOLAR: RICH SOLAR DC 12V - DC 12V Battery Charger User Manual Checked · Earlier documentLocation: PDF page 8
Documented
The manual's RS-DC20 dimension drawing prints 213.0, 188.0, 79.0 mm (length, height, depth; read from the rendered PDF page 7) with the note "The dimensions have a ±0.5mm tolerance." The data sheet prints "8.4 × 7.4 × 3.1 in", the same size in inches within rounding.
Official user manual: RICH SOLAR DC 12V to DC 12V Battery Charger user manual, models RS-DC20, RS-DC40 and RS-DC60 (PDF, file dated 251022) Rev 251022 · Checked · Earlier documentLocation: PDF page 7 (printed page 5), Dimensions drawing
Documented
The manual prints "Efficiency >85%, @ 14VDC, 30% load"; the data sheet prints ">85% (@ 14VDC, 30% Load)". A lower bound at one stated load, not a measured value.
Official user manual: RICH SOLAR DC 12V to DC 12V Battery Charger user manual, models RS-DC20, RS-DC40 and RS-DC60 (PDF, file dated 251022) Rev 251022 · Checked · Earlier documentOfficial datasheet: RICH SOLAR DC-DC 20A / 40A / 60A Battery Charger data sheet (PDF, 2026) Checked · Earlier documentLocation: PDF page 22 (printed page 20), Technical Specifications, Efficiency
Documented
The manual prints "Operating voltage range 10~16VDC" for all three models; the data sheet prints "Input Voltage Range 10-16VDC".
Official user manual: RICH SOLAR DC 12V to DC 12V Battery Charger user manual, models RS-DC20, RS-DC40 and RS-DC60 (PDF, file dated 251022) Rev 251022 · Checked · Earlier documentOfficial datasheet: RICH SOLAR DC-DC 20A / 40A / 60A Battery Charger data sheet (PDF, 2026) Checked · Earlier documentLocation: PDF page 22 (printed page 20), Technical Specifications, Operating voltage range
Documented
The manual prints "Output nominal current 20A" in the RS-DC20 column; the data sheet prints "Rated Charge Current 20A" (read from the rendered PDF page 2).
Official user manual: RICH SOLAR DC 12V to DC 12V Battery Charger user manual, models RS-DC20, RS-DC40 and RS-DC60 (PDF, file dated 251022) Rev 251022 · Checked · Earlier documentOfficial datasheet: RICH SOLAR DC-DC 20A / 40A / 60A Battery Charger data sheet (PDF, 2026) Checked · Earlier documentLocation: PDF page 22 (printed page 20), Technical Specifications, Output nominal current
Documented
Printed as "4. D+ Ignition Terminal."; the datasheet adds "Operates only when the engine is running via the D+ ignition signal"; series-wide.
Official user manual: RICH SOLAR DC 12V to DC 12V Battery Charger user manual, models RS-DC20, RS-DC40 and RS-DC60 (PDF, file dated 251022) Rev 251022 · Checked · Earlier documentLocation: PDF page 6, product overview (part 4)
Documented
The manual prints "Input nominal voltage 12VDC" for all three models and its cover reads "DC 12V - DC 12V BATTERY CHARGER"; the data sheet prints "System Voltage 12VDC".
Official user manual: RICH SOLAR DC 12V to DC 12V Battery Charger user manual, models RS-DC20, RS-DC40 and RS-DC60 (PDF, file dated 251022) Rev 251022 · Checked · Earlier documentOfficial datasheet: RICH SOLAR DC-DC 20A / 40A / 60A Battery Charger data sheet (PDF, 2026) Checked · Earlier documentLocation: PDF page 22 (printed page 20), Technical Specifications, Input nominal voltage
Documented
Printed as "30A 25A" in RICH SOLAR's RICH SOLAR DC 12V - DC 12V Battery Charger User Manual (PDF page 9). The manual applies to this model: Manual cover prints "MODEL: RS-DC20 / RS-DC40 / RS-DC60"; its fuse table has a row per model.
Official instruction manual: RICH SOLAR: RICH SOLAR DC 12V - DC 12V Battery Charger User Manual Checked · Earlier documentLocation: PDF page 9
Documented
The data sheet prints "Compatible Battery Types AGM, Flooded, Gel, Sealed, LiFePO₄ (LFP), Lithium-ion" for all three models.
Official datasheet: RICH SOLAR DC-DC 20A / 40A / 60A Battery Charger data sheet (PDF, 2026) Checked · Earlier documentLocation: PDF page 2, Specification, Compatible Battery Types
Documented
Converted: (-4 °F - 32) x 5/9 = -20 °C; (122 °F - 32) x 5/9 = 50 °C
The data sheet prints "Operating Temperature -4 °F to 122 °F" for all three models; the manual prints no operating temperature for the charger.
Official datasheet: RICH SOLAR DC-DC 20A / 40A / 60A Battery Charger data sheet (PDF, 2026) Checked · Earlier documentLocation: PDF page 2, Specification, Operating Temperature
Converted
Published claims and calculations, not independent test results.
Archived copy captured on 2026-10-09.
Location: PDF page 2, Specification
Retrieved
RICH SOLAR's two-page data sheet for the RS-DC20, RS-DC40 and RS-DC60, linked from the Specifications download on each store page and captured on October 9, 2026; it prints "© 2026 RICH SOLAR". Its specification table was read from the rendered PDF page 2 because the text layer lists the columns out of order. Manufacturer claims, not independent tests.
Archived copy of a document published by RICH SOLAR. Copyright retained by the publisher; kept for reference and verification only, no endorsement implied. To ask for its removal, email legal@chargedreviews.com.
Archived copy, unaltered, kept as a record of what RICH SOLAR published. Original address: https://cdn.shopify.com/s/files/1/0058/2769/0553/files/DC_20_40_60_BATTERY_CHARGER.pdf?v=1767942118. Copyright and takedown
Embedded dates are file metadata, not independent proof of publication.
SHA-256: 0d68cbdf20c266500845c6cf517dce5f305602fbe71d18d007cf4b25ede12b64
Archived copy captured on 2026-10-16.
Location: Installation instructions
Retrieved
RICH SOLAR's own manual, captured October 16, 2026 with the paced research fetcher (robots.txt read first). Manufacturer instructions, not independent tests.
Archived copy of a document published by RICH SOLAR. Copyright retained by the publisher; kept for reference and verification only, no endorsement implied. To ask for its removal, email legal@chargedreviews.com.
Archived copy, unaltered, kept as a record of what RICH SOLAR published. Original address: https://cdn.shopify.com/s/files/1/0058/2769/0553/files/RS-DC20_DC40_DC60_User_Manual_251022.pdf?v=1761284369. Copyright and takedown
Embedded dates are file metadata, not independent proof of publication.
SHA-256: ec84579245ce83ae653cf7af5699f0acbd7ac7f04c61bf5ddd0a1b2b071ee0cf
Archived copy captured on 2026-10-09.
Location: SKU line; Specifications & Downloads
Retrieved
RICH SOLAR's own US store page for SKU RS-DC20, captured on October 9, 2026; it links the documents cited beside it. Manufacturer claims, not independent tests; the page carries no revision date.
Earlier revisions, archived captures and copies published by someone other than the manufacturer. Every one stays reachable.
Archived copy of a document published by RICH SOLAR. Copyright retained by the publisher; kept for reference and verification only, no endorsement implied. To ask for its removal, email legal@chargedreviews.com.
Archived copy, unaltered, kept as a record of what RICH SOLAR published. Original address: https://cdn.shopify.com/s/files/1/0058/2769/0553/files/RS-DC20_DC40_DC60_User_Manual_251022.pdf?v=1761284369. Copyright and takedown
Embedded dates are file metadata, not independent proof of publication.
SHA-256: ec84579245ce83ae653cf7af5699f0acbd7ac7f04c61bf5ddd0a1b2b071ee0cf
Archived copy of a document published by RICH SOLAR. Copyright retained by the publisher; kept for reference and verification only, no endorsement implied. To ask for its removal, email legal@chargedreviews.com.
Archived copy, unaltered, kept as a record of what RICH SOLAR published. Original address: https://cdn.shopify.com/s/files/1/0058/2769/0553/files/DC_20_40_60_BATTERY_CHARGER.pdf?v=1767942118. Copyright and takedown
Embedded dates are file metadata, not independent proof of publication.
SHA-256: 0d68cbdf20c266500845c6cf517dce5f305602fbe71d18d007cf4b25ede12b64
No warranty terms on file.
Affiliate links below. As an Amazon Associate we earn from qualifying purchases. Affiliate disclosure
Price for one unit, as listed by the seller. Price checked .
The seller lists this as a new unit.
Official store listing: RICH SOLAR product listing Paid link.Checked · Earlier documentPrice from the Amazon Creators API for the New-condition featured offer. Price checked .
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon.com at the time of purchase will apply to the purchase of this product.
The seller lists this as a new unit.
Source product page: Amazon listing B0HDRVLQY6, identity checked through the Amazon Creators API Paid link. As an Amazon Associate we earn from qualifying purchases.CheckedProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon.com at the time of purchase will apply to the purchase of this product.
Prices we read at RICH SOLAR · 23 readings · no change in our readings since
Since · Listing price (USD)
A break in a line is a gap in our readings: no price is drawn for days we did not read.
| Checked (UTC) | Seller | Price |
|---|---|---|
| Oct 3, 2026, 11:32 AM PDT | RICH SOLAR Paid link. | $129.99 |
| Oct 16, 2026, 1:05 AM PDT | RICH SOLAR Paid link. | $129.99 |
| Oct 17, 2026, 1:15 AM PDT | RICH SOLAR Paid link. | $129.99 |
| Oct 18, 2026, 1:05 AM PDT | RICH SOLAR Paid link. | $129.99 |
| Oct 20, 2026, 1:35 AM PDT | RICH SOLAR Paid link. | $129.99 |
| Oct 21, 2026, 1:36 AM PDT | RICH SOLAR Paid link. | $129.99 |
| Oct 23, 2026, 3:10 AM PDT | RICH SOLAR Paid link. | $129.99 |
| Oct 24, 2026, 1:06 AM PDT | RICH SOLAR Paid link. | $129.99 |
| Oct 27, 2026, 1:06 AM PDT | RICH SOLAR Paid link. | $129.99 |
| Oct 28, 2026, 1:26 AM PDT | RICH SOLAR Paid link. | $129.99 |
| Oct 29, 2026, 1:16 AM PDT | RICH SOLAR Paid link. | $129.99 |
| Oct 30, 2026, 1:26 AM PDT | RICH SOLAR Paid link. | $129.99 |
| Oct 31, 2026, 1:26 AM PDT | RICH SOLAR Paid link. | $129.99 |
| Nov 2, 2026, 1:36 AM PST | RICH SOLAR Paid link. | $129.99 |
| Nov 3, 2026, 1:06 AM PST | RICH SOLAR Paid link. | $129.99 |
| Nov 4, 2026, 1:06 AM PST | RICH SOLAR Paid link. | $129.99 |
| Nov 5, 2026, 1:06 AM PST | RICH SOLAR Paid link. | $129.99 |
| Nov 6, 2026, 1:06 AM PST | RICH SOLAR Paid link. | $129.99 |
| Nov 7, 2026, 1:16 AM PST | RICH SOLAR Paid link. | $129.99 |
| Nov 8, 2026, 2:31 AM PST | RICH SOLAR Paid link. | $129.99 |
| Nov 9, 2026, 1:16 AM PST | RICH SOLAR Paid link. | $129.99 |
| Nov 10, 2026, 2:30 AM PST | RICH SOLAR Paid link. | $129.99 |
| Nov 12, 2026, 1:26 AM PST | RICH SOLAR Paid link. | $129.99 |
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Manufacturer SKU RS-DC20 · US market
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