There are a lot of threads about batteries but most seem to be from the UK, and others are dated. I’d appreciate some recommendations from the North American ops on lightweight batteries currently obtainable on the west side of the pond.
For my activations I run QRP CW with an Elecraft KX1. The KX1 can hold 6 AA batteries but that only gets me to 9V supply voltage (7.2V if using NIMH) and the KX1 puts out more power with higher supply voltages up to about 12V. My experience has been that the seemingly small difference in dB makes a big difference in being heard.
I overbought on my first battery, a Bioenno Power 12V 4.5 Ah. I’ve had great success with it, and for a day trip I don’t mind humping the weight. However, the XYL is an avid backpacker and is now inviting me to do SOTA on her multi-day trips. If I am adding the SOTA system to everything else carried for multi-day backpacking, I need to reduce the weight of my system! The battery is an obvious place to start.
Any recommendations for reliable lightweight batteries, preferably LiFePO, that have enough capacity to get me through an activation or two? I’d welcome other ops’ thoughts and experiences. Likewise, current sources for appropriate chargers?
Thanks and 73,