Re: Any use of a battery eliminator/charger device?
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I'm assuming you are referring to one of those Jump starters like those sold at Harbor Freight? They have a 15 Ah (approx) gel-cell inside, nothing fancy. Mine used to be in the car until the insulation on the short jumper cables cracked and fell off. I removed the defective jumper cables from the old one, and added a cable with Anderson Powerpoles on the end. It should easily last for most of Field Day with a 5 Watt QRP rig attached. My model includes a cigarette lighter socket, a built-in trickle charger, a trouble light, a heavy duty on-off switch, the ability to charge it from your car, and an expanded scale voltmeter. When they are on sale, they are hard to beat, other than being large and on the heavy side. it's old technology, but I believe gelcells are safer to handle than the newer Lithium batteries. If they are kept charged with the built-in charger, they seem to last a pretty long time. Mine is at least 12 years old.
On 02/05/2018 12:04 PM, Dr Jim Kennedy via Groups.Io wrote:
Have any of you QRP'ers who operate from outside locations ever used a 12V 15000mAh Multi-Function Car Jump Starter Battery Charger as a power source transceivers? If yes, how long does it last and would you recommend?