[tacky]

make sure u seal the joining between the bottom black part .on the out side with sealant .( the yellow bp used to have a rubber seal .)its just that my bp stopped working opened inside n the connecter on the battery had rusted off .only 9 months old .phoned wcw n they said batteries r not covered on the garentee . but other parts r .

[richard jagger]

My own experiences with backpacks is I had 3 batteries give in and I went to maplin for new batteries.I then fitted a 20 amp.hour battery.At the same time my charger packet up. So I bought a smart charger for 40 quid and found it reconditioned all 3 batteries.My B/P is not sealed and aften gets water in the bottom.I do find the wiring comes loose and the batteries do not connect.I soldered all wires and fitted a new switch and have never had problems since.