I was asked several times on private messages for this information.
Note: I am not affiliated with the supplier in any way.
The discussion was for a custom replacement for the 2.9 Ampere-hour gel
cell used in the Elecraft KBT2.
The replacement suggested by me is a rechargeable 4.5 Ampere-hour LiFePO4
pack.
It fits where the gel cell does, in the Elecraft custom internal bracket.
It is almost exactly half the weight.
Batteryspace item CU-J1087
http://www.batteryspace.com/custom-lifepo4-18650-battery-12-8v-4500-mah-57-6wh-7a-rate-w-pcb-and-connector.aspxsee detailed text in 'prewired' part of product description
matching charger:
http://www.batteryspace.com/smart-charger-1.5a-for-12.8-v-lifepo4-battery-pack.aspxuse the version with the 5.5x2.1mm plug
Steve KZ1X/4
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