Thank you OldWiz Oh I mentioned I have a pair of LI batteries
One is a 10 amp hour "Jump start" battery never used fully charged
The other is a Bioenno energy LiFePO4.. It's being topped off for use on Field Day (2 weeks) I'll feed it to a Kenwood TS-2000 likely cranked down to 5 watts. No more than 10. (Transmit power)
Ton of fun Field day promises to be. Small club.. Not planing on any winner awards but who knows. Good chance to play with assorted antennas day before then decide which we will use. (And top off battery)