---------------------------------------------------------- AeroElectric-List Digest Archive --- Total Messages Posted Thu 12/25/14: 3 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 05:54 AM - Re: Marine deep cycle battery charging question (C&K) 2. 09:01 AM - Holiday Greetings! (Bill Bradburry) 3. 04:57 PM - Re: Marine deep cycle battery charging question () ________________________________ Message 1 _____________________________________ Time: 05:54:15 AM PST US From: C&K Subject: Re: AeroElectric-List: Marine deep cycle battery charging question Hi Dave I would parallel them but I'd make sure that the voltage levels off around 13.8 volts over the first few weeks. Most maintainers will do that. Older trickle chargers often go too high for continuous charging and optimum battery life. Bob has posted lots of data on the ideal voltage over the years and might have a better value than 13.8. Ken On 24/12/2014 7:47 PM, Dave wrote: > > Hello listers, > > I have four 12volt RV/Marine deep cycle batteries that I need to trickle charge over the winter. Can I just connect them in parallel and use a trickle charger ? > > After reading the aero connection and considering when they are installed they are in parallel and being charged by the alternator. I would think I could trickle charge them this way. But sometimes I miss the subtleties of electrons > > Thanks > > Dave > > ________________________________ Message 2 _____________________________________ Time: 09:01:21 AM PST US From: "Bill Bradburry" Subject: AeroElectric-List: Holiday Greetings! Merry Christmas and Happy Chanukah to all on the list! Bill B ________________________________ Message 3 _____________________________________ Time: 04:57:14 PM PST US From: Subject: Re: AeroElectric-List: Marine deep cycle battery charging question Constant trickle charging without a float charger is not wise. I suggest a BATTERY MINDER they have a 1.5 amp model for about 50 bucks, I believe it may be connected to batteries in parallel. However it will only maintain them. Such a small charger will not recharge them if they are in a discharged state. It will not over charge and also gives it a shot of high frequency energy once each 5 seconds or so; which will keep lead sulfate from forming on the plates. Sulfate is what eventually kills most lead acid batteries. The 1.5 amp model is ideal for long term storage without harming a lead acid battery. Jim ---- C&K wrote: > > Hi Dave > I would parallel them but I'd make sure that the voltage levels off > around 13.8 volts over the first few weeks. > Most maintainers will do that. Older trickle chargers often go too high > for continuous charging and optimum battery life. > Bob has posted lots of data on the ideal voltage over the years and > might have a better value than 13.8. > Ken > > On 24/12/2014 7:47 PM, Dave wrote: > > > > Hello listers, > > > > I have four 12volt RV/Marine deep cycle batteries that I need to trickle charge over the winter. Can I just connect them in parallel and use a trickle charger ? > > > > After reading the aero connection and considering when they are installed they are in parallel and being charged by the alternator. I would think I could trickle charge them this way. But sometimes I miss the subtleties of electrons > > > > Thanks > > > > Dave > > > > > > > > > ------------------------------------------------------------------------------------- Other Matronics Email List Services ------------------------------------------------------------------------------------- Post A New Message aeroelectric-list@matronics.com UN/SUBSCRIBE http://www.matronics.com/subscription List FAQ http://www.matronics.com/FAQ/AeroElectric-List.htm Web Forum Interface To Lists http://forums.matronics.com Matronics List Wiki http://wiki.matronics.com Full Archive Search Engine http://www.matronics.com/search 7-Day List Browse http://www.matronics.com/browse/aeroelectric-list Browse Digests http://www.matronics.com/digest/aeroelectric-list Browse Other Lists http://www.matronics.com/browse Live Online Chat! http://www.matronics.com/chat Archive Downloading http://www.matronics.com/archives Photo Share http://www.matronics.com/photoshare Other Email Lists http://www.matronics.com/emaillists Contributions http://www.matronics.com/contribution ------------------------------------------------------------------------------------- These Email List Services are sponsored solely by Matronics and through the generous Contributions of its members.