It turns out I know the parts manager of a large RV dealer, and he used their deep cycle tester. Each one rated at 70%. Then the rubber lifting strap dropped one from the top of the tailgate, cracking the case. That nailed the coffin shut.
__________________
2013 Passport 3220BHWE, upgrade axles, Kumho Radial 857's, all LED, TST507 TPMS, Reese DCSC, DIY corner stabilizers
2012 Ram 1500 Sport crew cab, Hemi, 4x4, 3.92 LSD, factory brake controller, S&B CAI w/scoop, Moroso air/oil can, 87mm ported/polished/knife-edged throttle body, Magnaflow exhaust, 180* t-stat, Rear lowered 2", Airlift 1000.
|