HARDWARE / PRODUCTAdded 13 Jul 2026

B50-412/825/1237 50V Modular Battery Series

ibeos

Scalable 50V modular Li-ion battery series in 412, 825, and 1237 Whr configurations, 20–60A peak discharge, 30 kRad TID, aluminum+PEEK chassis, successor to B50-1000.

Typed specifications56 values

Discloses 7 of 12 fields engineers filter by in this category (category median 5).

Energy
412 Wh
12S2P configuration · datasheet p.1 825 Wh 12S4P configuration  |  1 237 Wh 12S6P configuration
Mass
3 000 g
12S2P configuration · datasheet p.1 5 900 g 12S4P configuration  |  8 800 g 12S6P configuration  |  3 000–8 800 g
Cell chemistry
Li-ion (unspecified)
lithium-ion battery assemblies · datasheet p.1
Envelope (L×W×H)
185 x 147 x 90 mm
12S2P (length x width x height) · datasheet p.1 185 x 147 x 90 mm 12S2P configuration  |  350 x 147 x 90 mm 12S4P (length x width x height)  |  350 x 147 x 90 mm 12S4P configuration  |  515 x 147 x 90 mm 12S6P (length x width x height)  +1
Supply voltage
36–50.4 V
operating voltage · datasheet p.1
Operating temperature
0–45 °C
Charge Cell Temperature · datasheet p.1 -25–55 °C discharge cell temperature
Radiation tolerance (TID)
30 krad
total ionizing dose · datasheet p.1
Cell configuration
12S6P
B50-1237 · datasheet p.1 12S2P B50-412  |  12S4P B50-825  |  12S4P  |  12S6P
Max continuous discharge current
20 A
12S2P · datasheet p.1 40 A 12S4P  |  60 A 12S6P  |  60 A B50-1237  |  20 A B50-412  +4
Nominal voltage
50 V
nom. · 50-Volt battery assemblies · datasheet p.1
Connector
1x 100-Pin scoop-proof 38999 connector; 1x 21-Pin Micro-D connector
datasheet p.1 1x 21-Pin Micro-D Connector
Max charge current
5 A
12S2P, recommended · datasheet p.1 10 A 12S4P, recommended  |  15 A 12S6P, recommended  |  15 A B50-1237  |  5 A B50-412  +1
Built-in heater
yes
Kapton thermofoil heaters · datasheet p.1
Heater power
20 W
12S2P, @ 28V, each · datasheet p.1 40 W 12S4P, @ 28V, each  |  60 W 12S6P, @ 28V, each
Protections
over-current charge
datasheet p.1 over-charge (OV) over-voltage  |  external inhibit / RBF storage/pre-launch inhibit interface  |  short circuit survives sustained short-circuit  |  over-discharge (UV) under-voltage  +5
Charge temperature range
0–45 °C
charge cell temperature · datasheet p.1

Each value is typed with its unit and measurement condition and cites the datasheet page it was taken from. Nothing is guessed: a field that is absent here has not been published by the manufacturer. machine-extracted ✓ checked by NewSpace Market ✓ manufacturer confirmed by the manufacturer.

As published by the supplier11 lines, in the manufacturer's own wording
Configurations
B50-412 (412 Whr), B50-825 (825 Whr), B50-1237 (1237 Whr)
Operating voltage
36–50.4 V
Max discharge rate
20 A (412 Whr) to 60 A (1237 Whr)
Recommended charge rate
5 A (412 Whr) to 15 A (1237 Whr)
Mass range
3.0–8.8 kg
Cross-section
147 x 90 mm
Length range
185–515 mm
Cell temp (charge)
0 to 45 deg C
Cell temp (discharge)
-25 to 55 deg C
SEE (operate)
LET > 37
TID
30 kRad(Si)

About

The Ibeos B50-412/825/1237 is a radiation-tolerant, fault-tolerant modular 50V lithium-ion battery series for spacecraft requiring 50V power buses. Three configurations cover 412 to 1237 Whr. Aluminum and PEEK chassis with Kapton thermofoil heaters. Connectors are 1x 100-pin 38999 plus 1x 21-pin Micro-D. Discharge rates scale with capacity from 20A (412 Whr) to 60A (1237 Whr). Mass ranges from 3.0 kg to 8.8 kg, with constant 147×90 mm cross-section for modular integration. This series supersedes the earlier B50-1000 design.

Documentation

Need the full ICD, test reports or a specific revision? Ask the supplier directly.

Source: www.ibeos.com ↗

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