Cell balance :Cells used to build each battery shall be matched to the limits specified below in order to avoid shortened cycle life. When tested as specified in , the capacity of each cell tested shall not vary from the average capacity obtained by more than the following specified limits:
a. Type I (Ni-Cd) and Type II (Ni-MH) cells: ± 5%
b. Type III ( Li-ion) and Type IV (Li-Po) cells: ± 2.5%
Battery voltage:The open circuit voltage shall be within the voltage range specified
9.9Ah BB2590U military lithium-ion features (BT-70791CG):
1.This is high performance rechargeable Lithium Ion battery with instantaneous start up.
2.Dual state of charge [gas gauge" LCD displays.
3.Durable high impact plastic housing and connector enclosure
4.High capacity, performance verified, hermetically sealed, lithium-ion cells.
5.Protection against short circuit and improper charge.
6.High reliability due to all welded Construction.
7.Unit contains safety vented cells
8.100% final testing
9.Replacement for: BB-390A/U, BB-590/U
BB-390B/U battery , BB-490/U battery , BA-5590/U battery ,BA-5390/U battery , BA-5290/U battery , BA-3590/U battery , and variants.
BT Part Number BT-70791CG
Dimensions Length: 4.4 in (112 mm) Width: 2.4 in (61 mm) Height: 5.0 in (127 mm)
Weight: 1.4 kg
Nominal Voltage: 28.8V, Two (2) x 14.4V/Section
Maximum Voltage: 33.0V, Two (2) x 16.5V/Section
33.6V, Two (2) x 16.8V/Section (with the BTA-70903 adapter)
Capacity: 9.9Ah in 24V Mode; 19.8Ah in 12V Mode
Discharge: 10A Max Continuous / Section
Pulse Discharge : 18A (5 sec ON/25 sec OFF) / Section
Operating Temperature: –20°C to +60°C (-4°F to +140°F)
Recommended Storage Temperature : –40°C to +40°C (-40°F to +104°F)
Connector: Floating Type per U.S. Army DWG# SC-C-179495
State of Charge Indicator: 2 Separate 5 Segment LCDs with Constant Display
Disposal: Check local regulations (Contains 0% Mercury or Cadmium)
--- Dual modes: 15V or 30V
--- High energy density
--- LCD Displays
--- Light weight
--- 5-year shelf life
--- SMBUS data communication
--- Safe: non-pressurized system
--- PRC-104, PRC-119
--- PRC-138, KY-57
--- Other equipment
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