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Image source: Maker series photo: MidNite Solar MNBCM, from MidNite Solar's own product photo page for model MNBCM; the image file name (meterLg) does not carry the model code MNBCM, so it is not tied to that model (image captured November 3, 2026): a front view, with its cable.Paid link. As an Amazon Associate we earn from qualifying purchases. Price as of Nov 13, 2026, 4:40 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.
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Printed as "There are 10 “Battery State of Charge” LEDs and 3 “Battery care” LEDs."
Official instruction manual: MidNite Solar Battery Capacity Meter MNBCM / MNBCMS instructions (10-188-1 REV: C, 12-23-14) Rev 10-188-1 REV: C · December 23, 2014 · Checked · Earlier documentLocation: Instructions page 1, Operation
Documented
Converted: 4.75 x 3.76 x 0.85 in x 25.4 mm/in, rounded to 0.1 mm
Printed as "Physical Size 4.75” x 3.76” x 0.85”"; converted from inches in the printed order. MidNite does not name the axes.
Official instruction manual: MidNite Solar Battery Capacity Meter MNBCM / MNBCMS instructions (10-188-1 REV: C, 12-23-14) Rev 10-188-1 REV: C · December 23, 2014 · Checked · Earlier documentLocation: Instructions page 2, Specifications, Physical Size
Calculated
Printed as "Maximum Input voltage (Reverse polarity protected) 70V"; no minimum is printed. The meter selects 12V, 24V, 36V or 48V battery operation automatically.
Official instruction manual: MidNite Solar Battery Capacity Meter MNBCM / MNBCMS instructions (10-188-1 REV: C, 12-23-14) Rev 10-188-1 REV: C · December 23, 2014 · Checked · Earlier documentLocation: Instructions page 2, Specifications
Documented
Printed as "Battery voltage (Automatic select) 12V, 24V, 36V, 48V".
Official instruction manual: MidNite Solar Battery Capacity Meter MNBCM / MNBCMS instructions (10-188-1 REV: C, 12-23-14) Rev 10-188-1 REV: C · December 23, 2014 · Checked · Earlier documentLocation: Instructions page 2, Specifications
Documented
Printed as "Average Power draw 12.5 mA".
Official instruction manual: MidNite Solar Battery Capacity Meter MNBCM / MNBCMS instructions (10-188-1 REV: C, 12-23-14) Rev 10-188-1 REV: C · December 23, 2014 · Checked · Earlier documentLocation: Instructions page 2, Specifications
Documented
Printed as "There are 10 “Battery State of Charge” LEDs and 3 “Battery care” LEDs."
Official instruction manual: MidNite Solar Battery Capacity Meter MNBCM / MNBCMS instructions (10-188-1 REV: C, 12-23-14) Rev 10-188-1 REV: C · December 23, 2014 · Checked · Earlier documentLocation: Instructions page 1, Operation
Documented
Converted: 4.75 x 3.76 x 0.85 in x 25.4 mm/in, rounded to 0.1 mm
Printed as "Physical Size 4.75” x 3.76” x 0.85”"; converted from inches in the printed order. MidNite does not name the axes.
Official instruction manual: MidNite Solar Battery Capacity Meter MNBCM / MNBCMS instructions (10-188-1 REV: C, 12-23-14) Rev 10-188-1 REV: C · December 23, 2014 · Checked · Earlier documentLocation: Instructions page 2, Specifications, Physical Size
Converted
Printed as "Maximum Input voltage (Reverse polarity protected) 70V"; no minimum is printed. The meter selects 12V, 24V, 36V or 48V battery operation automatically.
Official instruction manual: MidNite Solar Battery Capacity Meter MNBCM / MNBCMS instructions (10-188-1 REV: C, 12-23-14) Rev 10-188-1 REV: C · December 23, 2014 · Checked · Earlier documentLocation: Instructions page 2, Specifications
Documented
Printed as "Battery voltage (Automatic select) 12V, 24V, 36V, 48V".
Official instruction manual: MidNite Solar Battery Capacity Meter MNBCM / MNBCMS instructions (10-188-1 REV: C, 12-23-14) Rev 10-188-1 REV: C · December 23, 2014 · Checked · Earlier documentLocation: Instructions page 2, Specifications
Documented
Printed as "Average Power draw 12.5 mA".
Official instruction manual: MidNite Solar Battery Capacity Meter MNBCM / MNBCMS instructions (10-188-1 REV: C, 12-23-14) Rev 10-188-1 REV: C · December 23, 2014 · Checked · Earlier documentLocation: Instructions page 2, Specifications
Documented
Published claims and calculations, not independent test results.
Archived copy of the PDF obtained from MidNite Solar's own site on 2026-10-30, copied unchanged.
Location: Page 1, title and date 12-23-14; page 2, Key switched version instructions and Specifications; footer 10-188-1 REV: C
Retrieved
MidNite Solar's own two-page instructions for the Battery Capacity Meter; the page 1 title prints "Battery Capacity Meter MNBCM / MNBCMS 12-23-14" and the page 2 footer 10-188-1 REV: C. Page 2 says the S version (MNBCMS) has an additional switched lead and prints one Specifications block for the meter. Battery types printed are Gel, AGM and Flooded lead acid only; the voltage table is printed as approximate. No warranty is printed. Obtained from MidNite Solar's own site on 2026-10-30T02:18:37Z (HTTP 200) and copied unchanged into this archive. Manufacturer claims, not independent tests.
Archived copy of a document published by MidNite 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 MidNite Solar published. Original address: https://www.midnitesolar.com/pdfs/BCM_manual.pdf. Copyright and takedown
Printed revision date: 2014-12-23
Embedded dates are file metadata, not independent proof of publication.
SHA-256: dd862501181def7ff1dbf68ccf47606f32d5946dc4f6af921a49a436d77eb7e0
Archived copy of the PDF obtained from MidNite Solar's own site on 2026-10-30, copied unchanged.
Location: Page 1, title and the REV B MNBCMs statement
Retrieved
MidNite Solar's own one-page sheet "MidNite Solar Battery Condition Monitor Modifications for Switched Operation", linked on MidNite's document page as "Battery Capacity Meter Modification", kept as dated history. It describes a field modification that "can be performed on REV B MNBCMs" whose board has the key switch solder pad; a unit without it "cannot be modified" and MidNite offers a swap. REV B is the board revision of eligible units, not a sheet revision; no sheet revision or issue date is printed (PDF metadata December 14, 2011; server last-modified April 28, 2016). The 6 mA at 12 volts draw with the LEDs off applies to a modified unit and is not applied to the MNBCM record. The modification steps and fuse or breaker recommendation are the maker's historical instructions, not recorded as facts. Manufacturer claims, not independent tests. Obtained from MidNite Solar's own site on 2026-10-30T04:16:40Z (HTTP 200) and copied unchanged into this archive.
Archived copy of a document published by MidNite 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 MidNite Solar published. Original address: https://www.midnitesolar.com/pdfs/batCapMeterMod.pdf. Copyright and takedown
Embedded dates are file metadata, not independent proof of publication.
SHA-256: e2c88bb28162a05c96a4bf9860156eb091aaeca6edc64e504324f24a8143f987
Earlier revisions, archived captures and copies published by someone other than the manufacturer. Every one stays reachable.
Archived copy of a document published by MidNite 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 MidNite Solar published. Original address: https://www.midnitesolar.com/pdfs/BCM_manual.pdf. Copyright and takedown
Printed revision date: 2014-12-23
Embedded dates are file metadata, not independent proof of publication.
SHA-256: dd862501181def7ff1dbf68ccf47606f32d5946dc4f6af921a49a436d77eb7e0
Archived copy of a document published by MidNite 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 MidNite Solar published. Original address: https://www.midnitesolar.com/pdfs/batCapMeterMod.pdf. Copyright and takedown
Embedded dates are file metadata, not independent proof of publication.
SHA-256: e2c88bb28162a05c96a4bf9860156eb091aaeca6edc64e504324f24a8143f987
No warranty terms on file.
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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 B0091J7M16, 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.
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