Ok... what am I missing... when a 'reputable' battery supplier makes up a pack with (PCB's?) on the batteries is this not essentially a load leveller for the charging of the pack? I.E. would this not make separate charging (impossible anyway) of the batteries in the pack unecessary? Batteryspace makes (and sells) a 4800mah pack bundled with a smartcharger with the correct connector for attaching to a MagicShine. I use this exact system in Oregon. It rains (a lot) in Oregon. Practically submerged there hasn't been so much as a peep from the unshielded connector. FWIW I bought an extra cable from GeoMan to cannibalize (unecessary) and it wasn't shielded either. Wouldn't you rather be out riding than smelling soldering flux fumes? I would (am). FWIW.
H