Renogy 12V 40A DC-DC Battery Charger with MPPT (RBC40D1S): Renogy 12V 40A DC-DC Battery Charger with MPPT (RBC40D1S), the first image on Renogy's US store page, captured on October 21, 2026.

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Image source: Renogy 12V 40A DC-DC Battery Charger with MPPT (RBC40D1S), the first image on Renogy's US store page, captured on October 21, 2026.

Renogy 12V 40A DC-DC Battery Charger with MPPT (RBC40D1S)

Name: Renogy 12V 40A DC-DC Battery Charger with MPPT (RBC40D1S)
Brand: Renogy
SKU: RBC40D1S-US

By RenogySKU RBC40D1S-US

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Charge current40 A Battery voltage12 V Battery chemistrySealed/AGM, GEL, FLOOD, LiFePO4 Input voltageStarter battery 7-16 V DC; solar 13-30 V DC Weight1.2 kg / 2.65 lb Product warranty2 years

Key specs

Units

SKU: RBC40D1S-US
Official store listing
Sources
Printed as "sku":"RBC40D1S-US" for "40A DC-DC Battery Charger with MPPT" in Renogy's US store product data, captured October 21, 2026.
Official store listing: Renogy store Checked Oct 21, 2026 · Earlier document
Location: Store product data, variants, "sku" field
Documented
Power: 616 W
Official instruction manual
Sources
Printed as "Nominal Output Power 616W"; the store page prints "Output Power 616W".
Official instruction manual: Renogy 12V 40A DC-DC Battery Charger with MPPT (RBC40D1S-G1) User Manual, Version A0, January 1, 2026 Rev Version A0 (January 1, 2026) · Checked Oct 21, 2026 · Earlier document
Location: Section 8, Specifications
Documented
Weight: 1.2 kg2.6 lb converted
Official instruction manual
Sources
Printed as "Weight 1.2 kg /2.65 lb".
Official instruction manual: Renogy 12V 40A DC-DC Battery Charger with MPPT (RBC40D1S-G1) User Manual, Version A0, January 1, 2026 Rev Version A0 (January 1, 2026) · Checked Oct 21, 2026 · Earlier document
Location: Section 8, Specifications
Documented
Charger input: DC and solar (MPPT)
Official instruction manual
Sources
Printed as "Auxiliary Battery Charging Mode MPPT", with "Start Battery Input Specifications" and "Solar Panel Input Specifications" sections; single-model manual (RBC40D1S-G1).
Official instruction manual: Renogy 12V 40A DC-DC Battery Charger with MPPT (RBC40D1S-G1) User Manual, Version A0, January 1, 2026 Rev Version A0 (January 1, 2026) · Checked Oct 21, 2026 · Earlier document
Location: PDF page 30, Specifications (General)
Documented
Dimensions: 1.39 L
Calculated: Enclosure volume: W × H × D ÷ 1,000,000
W: 149 × H: 48 × L: 195 mmW: 5.87 × H: 1.9 × L: 7.68 in convertedOfficial instruction manual
Sources
Printed as "Dimensions (LxWxH) 195 x 149 x 48 mm / 7.68 x 5.87 x 1.89 inch", read as length, width and height.
Official instruction manual: Renogy 12V 40A DC-DC Battery Charger with MPPT (RBC40D1S-G1) User Manual, Version A0, January 1, 2026 Rev Version A0 (January 1, 2026) · Checked Oct 21, 2026 · Earlier document
Location: Section 8, Specifications
Calculated
Solar input limit: 670 W
Official instruction manual
Sources
Printed as "Maximum Input Power 670W" under "Solar Panel Input Specifications" (the start-battery section prints the same line); PDF page 13 also says the array must not exceed 670W.
Official instruction manual: Renogy 12V 40A DC-DC Battery Charger with MPPT (RBC40D1S-G1) User Manual, Version A0, January 1, 2026 Rev Version A0 (January 1, 2026) · Checked Oct 21, 2026 · Earlier document
Location: PDF page 30, Specifications (Solar Panel Input Specifications)
Documented
Input voltage: Starter battery 7-16 V DC; solar 13-30 V DC
Official instruction manual
Sources
Printed as "Voltage Range 7V to 16V DC" under Start Battery Input Specifications and "Voltage Range 13V to 30V DC" under Solar Panel Input Specifications.
Official instruction manual: Renogy 12V 40A DC-DC Battery Charger with MPPT (RBC40D1S-G1) User Manual, Version A0, January 1, 2026 Rev Version A0 (January 1, 2026) · Checked Oct 21, 2026 · Earlier document
Location: Section 8, Specifications, Start Battery Input and Solar Panel Input
Documented
Charge current: 40 A
Official instruction manual
Sources
Printed as "Maximum Charging Current 40A".
Official instruction manual: Renogy 12V 40A DC-DC Battery Charger with MPPT (RBC40D1S-G1) User Manual, Version A0, January 1, 2026 Rev Version A0 (January 1, 2026) · Checked Oct 21, 2026 · Earlier document
Location: Section 8, Specifications
Documented
Enclosure: IP31
Official instruction manual
Sources
Printed as "Enclosure Rating IP31".
Official instruction manual: Renogy 12V 40A DC-DC Battery Charger with MPPT (RBC40D1S-G1) User Manual, Version A0, January 1, 2026 Rev Version A0 (January 1, 2026) · Checked Oct 21, 2026 · Earlier document
Location: Section 8, Specifications
Documented

All specs18

Power: 616 W
Official instruction manual
Sources
Printed as "Nominal Output Power 616W"; the store page prints "Output Power 616W".
Official instruction manual: Renogy 12V 40A DC-DC Battery Charger with MPPT (RBC40D1S-G1) User Manual, Version A0, January 1, 2026 Rev Version A0 (January 1, 2026) · Checked Oct 21, 2026 · Earlier document
Location: Section 8, Specifications
Documented
Weight: 1.2 kg2.6 lb converted
Official instruction manual
Sources
Printed as "Weight 1.2 kg /2.65 lb".
Official instruction manual: Renogy 12V 40A DC-DC Battery Charger with MPPT (RBC40D1S-G1) User Manual, Version A0, January 1, 2026 Rev Version A0 (January 1, 2026) · Checked Oct 21, 2026 · Earlier document
Location: Section 8, Specifications
Documented
Charger input: DC and solar (MPPT)
Official instruction manual
Sources
Printed as "Auxiliary Battery Charging Mode MPPT", with "Start Battery Input Specifications" and "Solar Panel Input Specifications" sections; single-model manual (RBC40D1S-G1).
Official instruction manual: Renogy 12V 40A DC-DC Battery Charger with MPPT (RBC40D1S-G1) User Manual, Version A0, January 1, 2026 Rev Version A0 (January 1, 2026) · Checked Oct 21, 2026 · Earlier document
Location: PDF page 30, Specifications (General)
Documented
Dimensions: 149 W × 48 H × 195 L mm5.87 W × 1.9 H × 7.68 L in converted
Official instruction manual
Sources
Printed as "Dimensions (LxWxH) 195 x 149 x 48 mm / 7.68 x 5.87 x 1.89 inch", read as length, width and height.
Official instruction manual: Renogy 12V 40A DC-DC Battery Charger with MPPT (RBC40D1S-G1) User Manual, Version A0, January 1, 2026 Rev Version A0 (January 1, 2026) · Checked Oct 21, 2026 · Earlier document
Location: Section 8, Specifications
Documented
Solar input limit: 670 W
Official instruction manual
Sources
Printed as "Maximum Input Power 670W" under "Solar Panel Input Specifications" (the start-battery section prints the same line); PDF page 13 also says the array must not exceed 670W.
Official instruction manual: Renogy 12V 40A DC-DC Battery Charger with MPPT (RBC40D1S-G1) User Manual, Version A0, January 1, 2026 Rev Version A0 (January 1, 2026) · Checked Oct 21, 2026 · Earlier document
Location: PDF page 30, Specifications (Solar Panel Input Specifications)
Documented
Input voltage: Starter battery 7-16 V DC; solar 13-30 V DC
Official instruction manual
Sources
Printed as "Voltage Range 7V to 16V DC" under Start Battery Input Specifications and "Voltage Range 13V to 30V DC" under Solar Panel Input Specifications.
Official instruction manual: Renogy 12V 40A DC-DC Battery Charger with MPPT (RBC40D1S-G1) User Manual, Version A0, January 1, 2026 Rev Version A0 (January 1, 2026) · Checked Oct 21, 2026 · Earlier document
Location: Section 8, Specifications, Start Battery Input and Solar Panel Input
Documented
Charge current: 40 A
Official instruction manual
Sources
Printed as "Maximum Charging Current 40A".
Official instruction manual: Renogy 12V 40A DC-DC Battery Charger with MPPT (RBC40D1S-G1) User Manual, Version A0, January 1, 2026 Rev Version A0 (January 1, 2026) · Checked Oct 21, 2026 · Earlier document
Location: Section 8, Specifications
Documented
Enclosure: IP31
Official instruction manual
Sources
Printed as "Enclosure Rating IP31".
Official instruction manual: Renogy 12V 40A DC-DC Battery Charger with MPPT (RBC40D1S-G1) User Manual, Version A0, January 1, 2026 Rev Version A0 (January 1, 2026) · Checked Oct 21, 2026 · Earlier document
Location: Section 8, Specifications
Documented
Engine detection: IGN Signal Wire (for Smart Alternator)
Official instruction manual
Sources
Printed as "4.5. Install a IGN Signal Wire (for Smart Alternator)"; the section adds the wire may instead go to the alternator D+ terminal; single-model manual.
Official instruction manual: Renogy 12V 40A DC-DC Battery Charger with MPPT (RBC40D1S-G1) User Manual, Version A0, January 1, 2026 Rev Version A0 (January 1, 2026) · Checked Oct 21, 2026 · Earlier document
Location: PDF page 19, 4.5
Documented
Battery voltage: 12 V
Official instruction manual
Sources
Printed as "System Voltage 12V".
Official instruction manual: Renogy 12V 40A DC-DC Battery Charger with MPPT (RBC40D1S-G1) User Manual, Version A0, January 1, 2026 Rev Version A0 (January 1, 2026) · Checked Oct 21, 2026 · Earlier document
Location: Section 8, Specifications
Documented
Maximum input power: 670 W
Official instruction manual
Sources
Printed as "Maximum Input Power 670W" for the starter battery input and again for the solar panel input.
Official instruction manual: Renogy 12V 40A DC-DC Battery Charger with MPPT (RBC40D1S-G1) User Manual, Version A0, January 1, 2026 Rev Version A0 (January 1, 2026) · Checked Oct 21, 2026 · Earlier document
Location: Section 8, Specifications, Start Battery Input and Solar Panel Input
Documented
Max efficiency: 93 %
Official instruction manual
Sources
Printed as "Max Chargering Efficiency 93%" (Renogy's spelling) with no load point or test condition.
Official instruction manual: Renogy 12V 40A DC-DC Battery Charger with MPPT (RBC40D1S-G1) User Manual, Version A0, January 1, 2026 Rev Version A0 (January 1, 2026) · Checked Oct 21, 2026 · Earlier document
Location: Section 8, Specifications
Documented
Solar input voltage: 13 to 30 V
Official instruction manual
Sources
Printed as "Voltage Range 13V to 30V DC" under "Solar Panel Input Specifications"; single-model manual.
Official instruction manual: Renogy 12V 40A DC-DC Battery Charger with MPPT (RBC40D1S-G1) User Manual, Version A0, January 1, 2026 Rev Version A0 (January 1, 2026) · Checked Oct 21, 2026 · Earlier document
Location: PDF page 30, Specifications (Solar Panel Input Specifications)
Documented
Maximum input current: 45 A
Official instruction manual
Sources
Printed as "Maximum Input Current 45A ±5%" for each input; the tolerance is Renogy's.
Official instruction manual: Renogy 12V 40A DC-DC Battery Charger with MPPT (RBC40D1S-G1) User Manual, Version A0, January 1, 2026 Rev Version A0 (January 1, 2026) · Checked Oct 21, 2026 · Earlier document
Location: Section 8, Specifications, Start Battery Input and Solar Panel Input
Documented
Battery chemistry: Sealed/AGM, GEL, FLOOD, LiFePO4
Official instruction manual
Sources
Printed as "Battery Type Sealed/AGM, GEL, FLOOD, LiFePO4".
Official instruction manual: Renogy 12V 40A DC-DC Battery Charger with MPPT (RBC40D1S-G1) User Manual, Version A0, January 1, 2026 Rev Version A0 (January 1, 2026) · Checked Oct 21, 2026 · Earlier document
Location: Section 8, Specifications, Auxiliary Battery
Documented
Storage temperature: -20 to 60 °C-4 to 140 °F converted
Official instruction manual
Sources
Printed as "Storage Temperature -4°F to 140°F / -20°C to 60°C".
Official instruction manual: Renogy 12V 40A DC-DC Battery Charger with MPPT (RBC40D1S-G1) User Manual, Version A0, January 1, 2026 Rev Version A0 (January 1, 2026) · Checked Oct 21, 2026 · Earlier document
Location: Section 8, Specifications
Documented
Operating temperature: -20 to 45 °C-4 to 113 °F converted
Official instruction manual
Sources
Printed as "Operating Temperature -4°F to 113°F /-20°C to 45°C".
Official instruction manual: Renogy 12V 40A DC-DC Battery Charger with MPPT (RBC40D1S-G1) User Manual, Version A0, January 1, 2026 Rev Version A0 (January 1, 2026) · Checked Oct 21, 2026 · Earlier document
Location: Section 8, Specifications
Documented
Other compliance claims: FCC Path 15, Class B, CE, RoHS, SAA
Official instruction manual
Sources
Recorded exactly as Renogy prints it ("Path" is Renogy's spelling). No certificate, test report or issuer record is linked.
Official instruction manual: Renogy 12V 40A DC-DC Battery Charger with MPPT (RBC40D1S-G1) User Manual, Version A0, January 1, 2026 Rev Version A0 (January 1, 2026) · Checked Oct 21, 2026 · Earlier document
Location: Section 8, Specifications
Documented

Published claims and calculations, not independent test results.

Documents

2 on file

PDF
Renogy 12V 40A DC-DC Battery Charger with MPPT (RBC40D1S-G1) User Manual, Version A0, January 1, 2026OfficialRenogyOfficial instruction manual
Source details
Revision
Version A0 (January 1, 2026)
Revision date
Not stated
Archived copy captured on 2026-10-21.
Location: Section 8, Specifications (manual page 26, PDF page 30)
Retrieved Oct 21, 2026
Renogy's 35-page user manual for the RBC40D1S-G1, Version A0 dated January 1, 2026, linked from the charger's US store page and captured on October 21, 2026. Section 8, Specifications (manual page 26, PDF page 30), is cited. Manufacturer document, not an independent test.
Archived copies
Archived copy of a document published by Renogy. Copyright retained by the publisher; kept for reference and verification only, no endorsement implied. To ask for its removal, email legal@chargedreviews.com.
Archived backup Version A0 (January 1, 2026) · 7.24 MB
Archived copy, unaltered, kept as a record of what Renogy published. Original address: https://www.renogy.com/cdn/shop/files/RBC40D1S-G1_RENOGY_CORE_40A_Charger__User_Manual_A0_20260101.pdf?v=16586284203971710104. Copyright and takedown
Source first found
Oct 21, 2026
This copy captured
Oct 21, 2026, 5:00 AM PDT
Archived
Oct 21, 2026, 5:00 AM PDT
File details
Original source
Pages
35
Embedded creation date
Jan 4, 2026
Embedded modification date
Jan 4, 2026
Embedded dates are file metadata, not independent proof of publication.
SHA-256: f6df740469ec39f9e94166c48ee6a97658e9cb2480264e75b5b3f60296638174
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WEB
Renogy US store page: 40A DC-DC Battery Charger with MPPT (October 21, 2026 capture)OfficialRenogyOfficial product page
Source details
Revision
Not stated
Revision date
Not stated
Archived copy captured on 2026-10-21.
Location: Store country and currency; product title; specification text
Retrieved Oct 21, 2026
Renogy's own US store page (www.renogy.com), captured on October 21, 2026 with the paced research fetcher; the store reports country US and prices in US dollars. Manufacturer claims, not independent tests; the page carries no revision date.
Open

Archive and older revisions0

Earlier revisions, archived captures and copies published by someone other than the manufacturer. Every one stays reachable.

Archived documents

Renogy 12V 40A DC-DC Battery Charger with MPPT (RBC40D1S-G1) User Manual, Version A0, January 1, 2026

Archived copy of a document published by Renogy. Copyright retained by the publisher; kept for reference and verification only, no endorsement implied. To ask for its removal, email legal@chargedreviews.com.

Archived backup Version A0 (January 1, 2026) · 7.24 MB

Archived copy, unaltered, kept as a record of what Renogy published. Original address: https://www.renogy.com/cdn/shop/files/RBC40D1S-G1_RENOGY_CORE_40A_Charger__User_Manual_A0_20260101.pdf?v=16586284203971710104. Copyright and takedown

Source first found: Oct 21, 2026
This copy captured: Oct 21, 2026, 5:00 AM PDT
Archived: Oct 21, 2026, 5:00 AM PDT

File details

Original source

Pages: 35
Embedded creation date: Jan 4, 2026
Embedded modification date: Jan 4, 2026

Embedded dates are file metadata, not independent proof of publication.

SHA-256: f6df740469ec39f9e94166c48ee6a97658e9cb2480264e75b5b3f60296638174

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Warranty

Product warranty: 2 years
Official product page
Sources
Printed as "2-year material and workmanship warranty" on Renogy's US store page.
Official product page: Renogy US store page: 40A DC-DC Battery Charger with MPPT (October 21, 2026 capture) Checked Oct 21, 2026 · Earlier document
Location: Store page, specification list
Documented