Charged Reviews

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Morningstar ReadyBMS ReadyBlock (RB-BMS)

Model: RB-BMS · SKU: RB-BMS

Prepared Nov 12, 2026

Common specifications

Device type
ReadyBlock add-on for lithium battery BMS communication (closed-loop charging)Source [1]
Communications
CANBus; EIA-485Source [1]
Supported devices
Morningstar host components with the ReadyRail expansion system, such as the GenStar MPPT; Discover and PylonTech LiFePO4 batteriesSource [1]
Ports
2x CANBus/EIA-485 portsSource [1]
DisplayNot documented
Power inputNot documented
Mounting
35 mm DIN rail / ReadyRailSource [1]
EnclosureNot documented
Operating temperatureNot documented
Weight
0.06 kg0.14 lb convertedCalculatedSource [1]
Dimensions
100.5 D × 22.2 D × 61.5 D mm3.96 D × 0.87 D × 2.42 D in convertedSource [1]
Enclosure volume0.14 L** Calculated from recorded external dimensions
Warranty termNot documented

All recorded specifications

Communications
CANBus; EIA-485Documented claim
Conditions

Printed as "2x CANBus/EIA 485 Ports".

Location: PDF page 2, block diagram

Printed as "2x CANBus/EIA 485 Ports".

Location: PDF page 2, block diagram

[1]
Device type
ReadyBlock add-on for lithium battery BMS communication (closed-loop charging)Documented claim
Conditions

Printed as "Provides communication with lithium batteries" and "Enables “closed-loop” charging control".

Location: PDF page 1, features

Printed as "Provides communication with lithium batteries" and "Enables “closed-loop” charging control".

Location: PDF page 1, features

[1]
Dimensions
100.5 D × 22.2 D × 61.5 D mm3.96 D × 0.87 D × 2.42 D in convertedDocumented claim
Conditions

Printed as "Dimensions 3.96 x 0.874 x 2.42 in (100.5 x 22.2 x 61.5 mm)"; no axes are named, so the figures are kept in printed order.

Location: PDF page 2, Mechanical, Dimensions

Printed as "Dimensions 3.96 x 0.874 x 2.42 in (100.5 x 22.2 x 61.5 mm)"; no axes are named, so the figures are kept in printed order.

Location: PDF page 2, Mechanical, Dimensions

[1]
Mounting
35 mm DIN rail / ReadyRailDocumented claim
Conditions

Printed as "Mounting 35 mm DIN rail / ReadyRail".

Location: PDF page 2, Mechanical, Mounting

Printed as "Mounting 35 mm DIN rail / ReadyRail".

Location: PDF page 2, Mechanical, Mounting

[1]
Ports
2x CANBus/EIA-485 portsDocumented claim
Conditions

Printed as "2x CANBus/EIA 485 Ports".

Location: PDF page 2, block diagram

Printed as "2x CANBus/EIA 485 Ports".

Location: PDF page 2, block diagram

[1]
Supported devices
Morningstar host components with the ReadyRail expansion system, such as the GenStar MPPT; Discover and PylonTech LiFePO4 batteriesDocumented claim
Conditions

Printed as "available in Morningstar “host” components featuring the ReadyRail expansion system", "ReadyBMS installed in a GenStar MPPT charger" and "ReadyBMS currently supports 2-way communication and both open loop and closed loop communications with Discover and PylonTech LiFePO4 batteries".

Location: PDF page 1, description; PDF page 2, Supported Battery Brands

Printed as "available in Morningstar “host” components featuring the ReadyRail expansion system", "ReadyBMS installed in a GenStar MPPT charger" and "ReadyBMS currently supports 2-way communication and both open loop and closed loop communications with Discover and PylonTech LiFePO4 batteries".

Location: PDF page 1, description; PDF page 2, Supported Battery Brands

[1]
Weight
0.06 kg0.14 lb convertedCalculated62 g / 1000 g/kg = 0.062 kg
Conditions

Printed as "Weight 2.2 oz (62 g)" (written in kg).

Location: PDF page 2, Mechanical, Weight

Printed as "Weight 2.2 oz (62 g)" (written in kg).

Location: PDF page 2, Mechanical, Weight

[1]

Warranty

Certificate records

No records documented.

Sources and revisions

  1. Morningstar ReadyBMS datasheet (MS-003815, 03/07/2023) (November 2, 2026 capture)Official datasheet · Revision MS-003815 03/07/2023 · Checked https://www.morningstarcorp.com/wp-content/uploads/datasheet-readybms-en.pdf