I just installed a Braille B2015 in the coupe. The shurikyn's have died. They didn't like the cold garage even with the tenders. Learned my lesson. So they went to the farm and heated storage. The tenders are back on. The bike, lawn mower, and the 2 cars. Life support at the max. This Braille is a bit wider and a little shorter but works well with my set up. Weighs in at 15lbs.
The varta's lost their cranking power, but still functioned as batteries. 1 is still powering a hydraulic cylinder on a dump trailer, the other is waiting to take it's place...