Have to admit I'm not a fan of dry or gel batteries - frequently the service life is not good. And, where a conventional wet battery may be recovered nearly 100% if left to go flat, it's rare to do that with the gel variety.
Cheers,
Graham (G4FUJ)
Sold L44FOR 4/4 Giallo Fly '11 MINI Countryman Cooper D All4 '90 LR 90 SW
