“I have a shark navigator freestyle sv1106 with a 14.4 volt battery.I when I switch it on it runs for a second and shuts off.Then it will not run at all.Sometimes when I cut it on it will run like it supposed to.The battery always has a full charge.”
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Leroy, Mine does the exact same thing. I took out the battery and checked it. It reads high, over 17V although the battery is 14.4V (12 x 1.2V NiMh cells in series). This indicates that the charger may be overcharging the battery. I can finally get the vacuum to turn on and run normally by resetting it on the charger multiple times. This requires taking the vacuum off the charger, turning it on and seeing if it turns off. If it turns off, try again. Sometimes it will take resetting it on the charger 5 or 6 times before the vacuum stays on and runs normally. This indicates to me that the problem is with the vacuum's internal electronics and not with the battery.
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