The BB 2590 lithium ion rechargeable battery is the
new generation of rechargeable battery, planned to replace BB 390
models which was used primarily for training. Several
manufacturers are producing the battery, and new chargers are
offered to provide optimal support for the product.
The British Army
was one of the first forces to adapt rechargeable batteries for
its combat equipment.
chosen by the British Army are using the Lithium-ion (Li-ion)
Kaizen cell developed by AEA (picture at right), fitted with integrated intelligent
electronics offer reduced size and weight, compared to current
technology cells. A typical 6 man patrol will have full control
over its battery resources, and be able reduce its attributable
battery weight load from 14kg to less than 3kg - giving advantages
in both mobility and capacity for other equipment. The new cells
has been designed specifically to meet the extreme requirements of
rugged applications and thanks to its hermetic sealing and no
memory effect, even after periods of inactivity, it will still
deliver full performance. The battery offers effective operation
in extreme temperatures, ranging from -51 degrees centigrade to
+75 degrees centigrade. The temperature performance of the Cell
will end the practice of "shirt stuffing" whereby the existing Ni-Cd
battery is carried next to the skin in an attempt to keep it warm.
Improved recharging is achieved by more reliable fuel gauging,
optimized charge and discharge regimes and battery history
monitoring enable maximization of battery life – up to 1200
recharging cycles, four times more often than previous NiCd
batteries. The HF Radio
battery for Bowman batteries utilize the Mil Std BB2590 form
factor, to provides high capacity, yet offers the rugged, light
weight and wide temperature operability features.
Another type of the 2590 cell was
introduced by Ultralife Batteries in mid 2004 is the UBI-2590
Lithium Ion rechargeable battery, with two independent 15-volt
sections, each with separate protection electronics and capacity
gauges, enables users to operate the battery in either 15-volt or
30-volt modes. Its capacity in the 15-volt mode is 12.0 Ah @ 1A @
23°C and 6.0 Ah @ 500 mA @ 23°C in the 30-volt mode. The battery
has a maximum weight of 1.44 Kg and has an operating temperature
range of –20°C to 60°C.
Valence Technology Inc. is also
offering a 2590 type battery named VLNC-2590 Lithium-ion
rechargeable battery, produced with Saphion technology (phosphate
based cathode) which is considered safer, more stable than
cobalt-oxide based material used for conventional cathodes. The
package has two separately protected 12V sections and capacity
gauges. The battery weighs 1.128 kg and produces 8.6 Ah @ 1A @
23°C and 4.3 Ah @ 500 mA @ 23°C in the 30-volt mode. Operating
temperature range of –20°C to 60°C.