i have been having the same issue as many here with charging riva batts. I found that there is a slot on the atty end of the battery,and if i turn it out a turn or so with a screwdriver, the batt will make contact again with the charger connectors. all is well now.
not sure if this is common knowlege, but it may help some.moon
not sure if this is common knowlege, but it may help some.moon
