>>>On Wednesday, July 21, 2021, 10:21:30 AM MDT, jerry
wrote: >>>Li-Ion is not hard to manage. With a standard BMS, all you need is a
>>>voltage-regulated and current-limited wall wart - quite routine nowadays.
>>>- Jerry KF6VB
Agree, but the consequences of mismanagement can be
Li-Ion is not hard to manage. With a standard BMS, all you need is a
voltage-regulated and current-limited wall wart - quite routine
nowadays.
- Jerry KF6VB
On 2021-07-21 05:40, Louandzip via Elecraft wrote:
Oops. That commercial pack is LiFePO4, not Li-Ion. Doh.
W7HV.
Oops. That commercial pack is LiFePO4, not Li-Ion. Doh.
W7HV.
On Wednesday, July 21, 2021, 6:38:50 AM MDT, Louandzip
wrote:
There is a protected Li-Ion pack for the K2 available. With Lio-Ion, proper
battery management is essential.
There is a protected Li-Ion pack for the K2 available. With Lio-Ion, proper
battery management is essential.
https://www.batteryspace.com/custom-lifepo4-18650-battery-12-8v-4500-mah-57-6wh-7a-rate-w-pcb-and-connector.aspx
I briefly looked at putting together a LiFePO4 pack for the K2, but
On 2021-07-18 19:50, Douglas Hagerman via Elecraft wrote:
Next step, adding the the immensely heavy internal lead-acid battery.
*** I wonder how hard it would be to add instead a much lighter
lithium-ion
battery pack? Individual 18650 cells are now routine at 2.5A-H, and
available up
to
Doug...
Before buying the lead-acid battery, investigate the Lifepo4 battery
custom developed for the K2. Much lighter and more hours of operation.
https://www.batteryspace.com/custom-lifepo4-18650-battery-12-8v-4500-mah-57-6wh-7a-rate-w-pcb-and-connector.aspx
Also, search the archives for
Thanks to Don Wilhelm for his multiple suggestions on my problems with the K2 A
to B kit. Turns out that my main error was insufficient stripping of the leads
on the RFC 11 replacement toroid wire. Also I had some confusion deciphering
the value of one of the resister packs. But in any case,
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