Hi Gness
Check for faulty batteries, has happened to us. Try new batteries, charge fully then let them run down every so often. We keep ours off the rest (charger) during the day and only put them on overnight
Thanks, Psyb and Dave....Psyb....mine don't last an hour now without going bip and dying...so I may have to take Dave's advice...pity the little clothes shop in town was having a fantastic sale today....tops versus phone...no contest....next payday.....☺