BB-2590/U Li-ion Battery with SMBUS

BB-2590 Battery

BB-2590/U Li-ion Battery with SMBUS

For manpack radios, robotic platforms, and sensor payloads, the BB-2590 battery form factor stays familiar in the field, and this BB-2590/U battery pairs that compatibility with SMBus v1.1 reporting, 276 Wh of stored energy, and selectable 14.4 V or 28.8 V output.

BB-2590/U Li-ion battery with SMBUS high capacity
BB-2590/U Li-ion battery with SMBUS high capacity

Specification snapshot

What the BB-2590/U Pack Publishes

Every figure below is taken from the manufacturer's own product listing. Use it as the reference sheet when you compare this pack against another BB-2590 build or against the radio it is meant to feed.

ItemPublished value
PT model no.PTO-2590SMbus
Energy276 Wh
Average voltage14.4 V or 28.8 V typical; 12.0 V or 24.0 V at end of discharge
Nominal capacity19.2 Ah in 14.4 V mode; 9.6 Ah in 28.8 V mode
Pulse capability (5 s)Up to 18 A
Dimensions127 × 112 × 61 mm
Weight1.4 kg
Operating temperature−20 °C to +55 °C
Storage temperature−30 °C to +40 °C
HousingHard plastic case
Terminal6-pin polarized socket, SC-C-179495
State of charge displayTwo separate 5-segment LCDs, constant display

Dual voltage

14.4 V or 28.8 V: Match the Mode to the Platform

The pack holds the same 276 Wh either way, so the choice is about what the platform expects rather than how long it runs. In 14.4 V mode the pack delivers 19.2 Ah; switched to 28.8 V the same energy arrives at 9.6 Ah. End-of-discharge is quoted at 12.0 V and 24.0 V respectively, which is the figure your equipment cut-off should tolerate.

  • 28.8 V mode — the high-voltage setting used where the load is wired for the 28 V class.
  • 14.4 V mode — the nominal setting that mirrors a 12 V architecture.
  • 18 A pulse (5 s) — the surge headroom quoted for radio transmit bursts.
BB-2590 Lithium-Ion battery pack, tan housing, dual voltage 14.4V and 28.8V
BB-2590 lithium-ion pack in the tan housing variant. Confirm the housing colour you need when you request a quote.

SMBus v1.1 / SBData v1.1

What the SMBus Link Reports to a Host

The pack is not a blind cell block: it answers SMBus queries, so a charger or a platform charger manager can read what it needs instead of guessing from terminal voltage.

Charge status

SMBus v1.1 compliant reporting of charge state, so the host sees remaining capacity rather than a voltage estimate.

Health metrics

SBData v1.1 data block for battery management: the figures a fleet manager needs to pull a pack before it fails in the field.

Display at the pack

Two separate 5-segment LCDs show absolute state of charge without a radio attached — useful when packs are issued from a store.

Fleet fit

Drop-In Replacements and Charger Lines

The listing states the packs this unit replaces directly, and names the charger families it works with. Check both lists against your existing stock before ordering.

CompatibilityListed on the product page
Direct replacement forBB-2590/U · BB-590/U · BB-390B/U · BB-490/U · BA-5590/U · BA-5390/U · BA-3590/U
Charger families referencedBT-70791JM · BT-70791A · BT-70791BK · BT-70791CK · BT-70791CG · BT-70791CE · ubbl02 units
Radio families namedSINCGARS & ATCS (AN/PRC-104, AN/PRC-119), FALCON (AN/PRC-138, AN/PRC-117)
Other platforms namedRobots, surveillance / sensors, jammer

The listing quotes the pulse figure as “Pulse Capability (5 seconds) — up to 18A continuous”. Ask the supplier to confirm the surge rating your duty cycle actually needs, rather than reading the two numbers as one specification.

Applications

Where This Pack Fits

The same form factor covers manpack radios, ground robots and sensor payloads, which is why the pack is specified by interface and voltage mode rather than by one device.

Manpack radios

SINCGARS and ATCS sets (AN/PRC-104, AN/PRC-119) and FALCON sets (AN/PRC-138, AN/PRC-117) take the BB-2590 footprint.

Robots and jammers

Ground robots and jammer platforms load the pack harder on peaks, which is where the quoted 18 A pulse and the 276 Wh budget matter.

Surveillance and sensors

Long-dwell sensor payloads care about energy per kilogram and about storage temperature when the kit is left in a vehicle.

Fleet replacement

Because the pack replaces BB-590/U, BB-390B/U and the BA-5590 family directly, a mixed inventory can be consolidated onto one part number.

Before you order

Six Checks Before the Quote

  • Voltage mode — 14.4 V or 28.8 V, decided by the equipment, not by preference.
  • Terminal — 6-pin polarized socket SC-C-179495, matched against your existing cable.
  • Charger line — confirm your charger appears in the BT-70791 family list or is an ubbl02 unit.
  • Temperature window — −20 °C to +55 °C operating; storage −30 °C to +40 °C.
  • Physical fit — 127 × 112 × 61 mm and 1.4 kg inside the pouch or bay you already use.
  • Compliance — MIL-PRF-32052/1, all-welded construction, hermetically sealed cells and 100% final testing.
BB-2590 dual voltage lithium-ion battery pack, second tan housing view
Second published view of the same pack. The 6-pin polarized socket and the twin 5-segment LCDs are the parts to check first.

Related Reading

Three notes to help clarify product requirements before contacting the supplier.

Military Radio Battery Supply for SINCGARS and AN/PRC Radio Fleets

Battery readiness for SINCGARS and AN/PRC radio fleets begins with confirming the radio list, voltage mode, interface, and charger line before a pack is ordered.

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BB-2590/U Battery for EOD Robots and C-UAS Power

Choosing a BB-2590/U battery for an EOD robot or C-UAS platform comes down to pulse current, dual voltage, temperature, and interface fit.

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Powering SINCGARS Manpack Radios with a 276Wh Dual-Voltage Battery

Manpack radio power is a continuous field load, not a short phone recharge, so battery energy, voltage, and temperature behavior decide what teams can carry.

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Frequently Asked Questions

What voltage modes does the BB-2590/U battery support?

Two: 14.4 V mode with 19.2 Ah nominal capacity and 28.8 V mode with 9.6 Ah. Both hold 276 Wh, and the quoted end-of-discharge figures are 12.0 V and 24.0 V.

Which packs does it replace directly?

The listing names BB-2590/U, BB-590/U, BB-390B/U, BB-490/U, BA-5590/U, BA-5390/U and BA-3590/U as direct replacements for this unit.

Which chargers are listed for it?

The BT-70791JM, BT-70791A, BT-70791BK, BT-70791CK, BT-70791CG and BT-70791CE families, plus ubbl02 units. Confirm your own charger against that list before ordering.

What does the SMBus interface report?

The pack is SMBus v1.1 and SBData v1.1 compliant and communicates charge status and health metrics for battery management, so a host reads state of charge and pack health rather than inferring it from voltage.

What connector, size and temperature range should I plan for?

A 6-pin polarized socket (SC-C-179495), a 127 × 112 × 61 mm hard plastic case weighing 1.4 kg, operating from −20 °C to +55 °C and storing between −30 °C and +40 °C.

How do I get a price and lead time?

Pricing on this listing is quote-based rather than an online checkout. Send the voltage mode, quantity, terminal type, charger line and destination through the contact page and the supplier confirms price and lead time.

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