driver0606
Seaman
- Joined
- Sep 9, 2015
- Messages
- 56
I hope everybody had a good Christmas.
I have a 1988/9 Evinrude 9.9 electric start recently fitted with a new rectifier, fitted to a 9ft. speedboat. When running fast it used to show about 14v - 15v on the voltmeter. It has now started showing about 16v. It has been suggested that there may be a bad cell in the 3 year old battery, although it starts the engine well enough. My questions are-
1) If I continue to use it as is, will running with this high voltage damage the electrics in the engine?
2) The battery is 24 amp hour, if I change it, would a smaller battery, say to about 12 amp hour to save weight, is that big enough for the motor?
Many thanks for any advice.
John.
I have a 1988/9 Evinrude 9.9 electric start recently fitted with a new rectifier, fitted to a 9ft. speedboat. When running fast it used to show about 14v - 15v on the voltmeter. It has now started showing about 16v. It has been suggested that there may be a bad cell in the 3 year old battery, although it starts the engine well enough. My questions are-
1) If I continue to use it as is, will running with this high voltage damage the electrics in the engine?
2) The battery is 24 amp hour, if I change it, would a smaller battery, say to about 12 amp hour to save weight, is that big enough for the motor?
Many thanks for any advice.
John.