battery

[Learjetter]

Today, my 2 year old G242 battery died. Showed 24.3v unloaded, but volts dropped to 9.8v upon cranking—obviously no start. Worked great two weeks ago. Use a Schauer 24v ground power unit and battery charger routinely. Thought it would be a good battery minder...but maybe the charger/maintainer hastened it’s demise? According to logs, prior to 2018, the bird got a new battery in 1988, 1999, and 2009. So, old Gill batteries were apparently pretty good. Thinking of swapping to Concorde. A&P votes for Concorde also. Concorde site calls for the RG 24-12 as the appropriate battery for my ‘77 NA G model. Anyone using this battery? Where do you like to shop for one?