Charged Reviews

Quick reference

Redodo 12V 40A DC to DC Charger with MPPT R12V40A-DC-Z

Model: R12V40A-DC-Z · SKU: R12V40A-DC-Z

Prepared Nov 12, 2026

Report an issue

Find a specification

Common specifications

Charger input	DC and solar (MPPT)Source [2]
Input voltage	Not documented
Solar input voltage	10 to 30 VSource [2]
Solar input limit	600 WSource [2]
Output voltage	7V to 15.4VSource Paid link.[1]
Battery voltage	12 VSource Paid link.[1]
Charge current	40 ASource Paid link.[1]
Battery chemistry	SLA, AGM, GEL, CA, LISource Paid link.[1]
Power	Not documented
Isolated	Not documented
Engine detection	ACC Wire with the AlternatorSource [2]
Weight	1.1 kg2.4 lb convertedCalculatedSource Paid link.[1]
Enclosure volume	Not documented
Warranty term	Not documented

All recorded specifications

Battery chemistry	SLA, AGM, GEL, CA, LIDocumented claim Conditions Printed as "Battery Type： SLA, AGM, GEL, CA, LI". Location: Store page SPECS, Battery Type Printed as "Battery Type： SLA, AGM, GEL, CA, LI". Location: Store page SPECS, Battery Type Official product page · Redodo 12V 40 Amp DC to DC Charger with MPPT, Redodo store page (October 9, 2026 capture)Paid link. [1]
Battery fuse or breaker (manual)	Fusing (Rated Charging Current: 40A): Input (Starter Battery/PV) 60A; Output (Service Battery) 50ADocumented claim Conditions Read from the rendered page of the scanned manual (no text layer); printed as Fusing (Rated Charging Current: 40A) / Input (Starter Battery/PV): 60A / Output (Service Battery): 50A. The manual applies to this model: English section names 'REDODO 12V 40A DC-DC DUAL INPUT BATTERY CHARGER' (cover '12V 40A DC-DC Dual Input Battery Charger', solar input 600W/30V, matching the record's DC to DC charger with MPPT); linked as '12V 40A DC to DC Charger' on the US manuals page. Facts taken from the English (EN) section only. Location: PDF page 11 (printed page 03, EN), Wiring & Setup, Fusing table Read from the rendered page of the scanned manual (no text layer); printed as Fusing (Rated Charging Current: 40A) / Input (Starter Battery/PV): 60A / Output (Service Battery): 50A. The manual applies to this model: English section names 'REDODO 12V 40A DC-DC DUAL INPUT BATTERY CHARGER' (cover '12V 40A DC-DC Dual Input Battery Charger', solar input 600W/30V, matching the record's DC to DC charger with MPPT); linked as '12V 40A DC to DC Charger' on the US manuals page. Facts taken from the English (EN) section only. Location: PDF page 11 (printed page 03, EN), Wiring & Setup, Fusing table Official instruction manual · Redodo: user manual (Redodo-12V40A_DC-DC_MPPT_-EN_JP_DE_44P.pdf) [2]
Battery voltage	12 VDocumented claim Conditions Printed as "System Nominal Voltage： 12V". Location: Store page SPECS, System Nominal Voltage Printed as "System Nominal Voltage： 12V". Location: Store page SPECS, System Nominal Voltage Official product page · Redodo 12V 40 Amp DC to DC Charger with MPPT, Redodo store page (October 9, 2026 capture)Paid link. [1]
Charge current	40 ADocumented claim Conditions Printed as "Charging Current： 40A". Location: Store page SPECS, Charging Current Printed as "Charging Current： 40A". Location: Store page SPECS, Charging Current Official product page · Redodo 12V 40 Amp DC to DC Charger with MPPT, Redodo store page (October 9, 2026 capture)Paid link. [1]
Charger input	DC and solar (MPPT)Documented claim Conditions Printed as "Solar Charging Mode" with the value line "MPPT" directly below it (OCR lines), beside "Alternator (/Starter Battery)" input rows; single-model manual. Location: PDF page 15, Specifications (General) Printed as "Solar Charging Mode" with the value line "MPPT" directly below it (OCR lines), beside "Alternator (/Starter Battery)" input rows; single-model manual. Location: PDF page 15, Specifications (General) Official instruction manual · Redodo: user manual (Redodo-12V40A_DC-DC_MPPT_-EN_JP_DE_44P.pdf) [2]
Dimensions	5.83 x 1.89 x 7.44 inDocumented claim Conditions Printed as "Size： 5.831.897.44 inch"; recorded in the printed inches, with no axis order stated. Location: Store page SPECS, DIMENSIONS, Size Printed as "Size： 5.831.897.44 inch"; recorded in the printed inches, with no axis order stated. Location: Store page SPECS, DIMENSIONS, Size Official product page · Redodo 12V 40 Amp DC to DC Charger with MPPT, Redodo store page (October 9, 2026 capture)Paid link. [1]
Engine detection	ACC Wire with the AlternatorDocumented claim Conditions Printed as "Connect the ACC Wire with the Alternator (Optional for Smart Alternator)"; the ACC wire goes to a switching ignition source, needed for smart alternators only. Location: PDF page 13, Installation (ACC wire step) Printed as "Connect the ACC Wire with the Alternator (Optional for Smart Alternator)"; the ACC wire goes to a switching ignition source, needed for smart alternators only. Location: PDF page 13, Installation (ACC wire step) Official instruction manual · Redodo: user manual (Redodo-12V40A_DC-DC_MPPT_-EN_JP_DE_44P.pdf) [2]
Installation clearances (manual)	Clearance should be at least 2 inches (5cm); >2 inches (50 mm) above and belowDocumented claim Conditions Read from the rendered page of the scanned manual (no text layer); printed as Make sure there is sufficient room for wiring and ventilation clearance above and below the charger. Clearance should be at least 2 inches (5cm). Figure: >2 inches (50 mm) Warm Air / >2 inches (50 mm) Cool Air. The manual applies to this model: English section names 'REDODO 12V 40A DC-DC DUAL INPUT BATTERY CHARGER' (cover '12V 40A DC-DC Dual Input Battery Charger', solar input 600W/30V, matching the record's DC to DC charger with MPPT); linked as '12V 40A DC to DC Charger' on the US manuals page. Facts taken from the English (EN) section only. Location: PDF page 10 (printed page 02, EN), Installation, Mounting, Choosing Location, text and clearance figure Read from the rendered page of the scanned manual (no text layer); printed as Make sure there is sufficient room for wiring and ventilation clearance above and below the charger. Clearance should be at least 2 inches (5cm). Figure: >2 inches (50 mm) Warm Air / >2 inches (50 mm) Cool Air. The manual applies to this model: English section names 'REDODO 12V 40A DC-DC DUAL INPUT BATTERY CHARGER' (cover '12V 40A DC-DC Dual Input Battery Charger', solar input 600W/30V, matching the record's DC to DC charger with MPPT); linked as '12V 40A DC to DC Charger' on the US manuals page. Facts taken from the English (EN) section only. Location: PDF page 10 (printed page 02, EN), Installation, Mounting, Choosing Location, text and clearance figure Official instruction manual · Redodo: user manual (Redodo-12V40A_DC-DC_MPPT_-EN_JP_DE_44P.pdf) [2]
Max efficiency	Up to 93%Documented claim Conditions Printed as "Charging Efficiency： Up to 93%", kept with its printed bound. Location: Store page SPECS, Charging Efficiency Printed as "Charging Efficiency： Up to 93%", kept with its printed bound. Location: Store page SPECS, Charging Efficiency Official product page · Redodo 12V 40 Amp DC to DC Charger with MPPT, Redodo store page (October 9, 2026 capture)Paid link. [1]
Maximum input power	600 WDocumented claim Conditions Printed as "Max. Alternator Input Power： 600W"; this is the alternator side, and no solar input power is printed. Location: Store page SPECS, Max. Alternator Input Power Printed as "Max. Alternator Input Power： 600W"; this is the alternator side, and no solar input power is printed. Location: Store page SPECS, Max. Alternator Input Power Official product page · Redodo 12V 40 Amp DC to DC Charger with MPPT, Redodo store page (October 9, 2026 capture)Paid link. [1]
Mounting orientation (manual)	stand-alone or wall-mounted both horizontally and vertically; vertical mounting is preferredDocumented claim Conditions Read from the rendered page of the scanned manual (no text layer); printed as This product could be stand-alone or wall-mounted both horizontally and vertically. Vertical mounting is preferred for optimum cooling. The manual applies to this model: English section names 'REDODO 12V 40A DC-DC DUAL INPUT BATTERY CHARGER' (cover '12V 40A DC-DC Dual Input Battery Charger', solar input 600W/30V, matching the record's DC to DC charger with MPPT); linked as '12V 40A DC to DC Charger' on the US manuals page. Facts taken from the English (EN) section only. Location: PDF page 10 (printed page 02, EN), Installation, Securely placed or mounted Read from the rendered page of the scanned manual (no text layer); printed as This product could be stand-alone or wall-mounted both horizontally and vertically. Vertical mounting is preferred for optimum cooling. The manual applies to this model: English section names 'REDODO 12V 40A DC-DC DUAL INPUT BATTERY CHARGER' (cover '12V 40A DC-DC Dual Input Battery Charger', solar input 600W/30V, matching the record's DC to DC charger with MPPT); linked as '12V 40A DC to DC Charger' on the US manuals page. Facts taken from the English (EN) section only. Location: PDF page 10 (printed page 02, EN), Installation, Securely placed or mounted Official instruction manual · Redodo: user manual (Redodo-12V40A_DC-DC_MPPT_-EN_JP_DE_44P.pdf) [2]
Operating temperature	-10 to 45 °C14 to 113 °F convertedDocumented claim Conditions Printed as "Operating： -10°C to 45°C/-14'F to 113°F"; the Celsius figures are recorded (the printed -14'F does not equal -10 °C). Location: Store page SPECS, TEMPERATURE, Operating Printed as "Operating： -10°C to 45°C/-14'F to 113°F"; the Celsius figures are recorded (the printed -14'F does not equal -10 °C). Location: Store page SPECS, TEMPERATURE, Operating Official product page · Redodo 12V 40 Amp DC to DC Charger with MPPT, Redodo store page (October 9, 2026 capture)Paid link. [1]
Output voltage	7V to 15.4VDocumented claim Conditions Printed as "Charging Voltage Range： 7V to 15.4V". Location: Store page SPECS, Charging Voltage Range Printed as "Charging Voltage Range： 7V to 15.4V". Location: Store page SPECS, Charging Voltage Range Official product page · Redodo 12V 40 Amp DC to DC Charger with MPPT, Redodo store page (October 9, 2026 capture)Paid link. [1]
Solar input limit	600 WDocumented claim Conditions Printed as "Max. Solar Input Power/Voltage" / "600W/30V" (label and value on separate OCR lines); single-model manual. Location: PDF page 4, Product overview Printed as "Max. Solar Input Power/Voltage" / "600W/30V" (label and value on separate OCR lines); single-model manual. Location: PDF page 4, Product overview Official instruction manual · Redodo: user manual (Redodo-12V40A_DC-DC_MPPT_-EN_JP_DE_44P.pdf) [2]
Solar input voltage	10 to 30 VDocumented claim Conditions Printed as "Min. Solar Input Voltage" / "10V" and "Max. Solar Input Voltage" / "30V" (label and value on separate OCR lines); single-model manual. Location: PDF page 15, Specifications (General) Printed as "Min. Solar Input Voltage" / "10V" and "Max. Solar Input Voltage" / "30V" (label and value on separate OCR lines); single-model manual. Location: PDF page 15, Specifications (General) Official instruction manual · Redodo: user manual (Redodo-12V40A_DC-DC_MPPT_-EN_JP_DE_44P.pdf) [2]
Storage temperature	-20 to 65 °C-4 to 149 °F convertedDocumented claim Conditions Printed as "Storage： -20°C to 65°C/-4°F to 149°F". Location: Store page SPECS, TEMPERATURE, Storage Printed as "Storage： -20°C to 65°C/-4°F to 149°F". Location: Store page SPECS, TEMPERATURE, Storage Official product page · Redodo 12V 40 Amp DC to DC Charger with MPPT, Redodo store page (October 9, 2026 capture)Paid link. [1]
Weight	1.1 kg2.4 lb convertedCalculated2.43 lb x 0.45359237 kg/lb, rounded to 0.01 kg Conditions Printed as "Approx. Weight： 2.43lbs", an approximate figure; the pound figure is converted. Location: Store page SPECS, DIMENSIONS, Approx. Weight Printed as "Approx. Weight： 2.43lbs", an approximate figure; the pound figure is converted. Location: Store page SPECS, DIMENSIONS, Approx. Weight Official product page · Redodo 12V 40 Amp DC to DC Charger with MPPT, Redodo store page (October 9, 2026 capture)Paid link. [1]

Warranty

Certificate records

No records documented.

Sources and revisions

Redodo 12V 40 Amp DC to DC Charger with MPPT, Redodo store page (October 9, 2026 capture)Paid link.Official product page · Checked Oct 9, 2026https://www.redodopower.com/products/redodo-12v-40a-dc-to-dc-charger-with-mppt
Redodo: user manual (Redodo-12V40A_DC-DC_MPPT_-EN_JP_DE_44P.pdf)Official instruction manual · Checked Oct 16, 2026https://cdn.shopify.com/s/files/1/0561/7641/0714/files/Redodo-12V40A_DC-DC_MPPT_-EN_JP_DE_44P.pdf?v=1791875006