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What is the Best Battery for a Boat

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[Music]  hi Jeff Cote here with Pacific god  systems what we're gonna talk about  Nexus batteries sounds pretty simple but  it can be confusing which battery is  right for you as a motor there's so much  choice you know first thing you've got  to recognize is that lead acid  conventional batteries really come in  three popular flavors flooded lead-acid  batteries Gillette acid batteries and  AGM gel acid batteries for the purpose  of simplicity we're not gonna get into  lithium batteries we've done other  videos on that but today we're gonna  talk about lead acid batteries there's  really two families there's lead acid  flooded and then there's actually seal  valve regulated which is gel or AGM two  different AGM stands for absorbed glass  mat batteries so when it's time to  choose what type of battery you have  you've got to remember the different  factors are maintenance-free you know  certain flooded lead-acid batteries or  maintenance-free  some have actually caps on the top  especially the deep cycle batteries that  you actually have to maintain and top  off the distilled water as you're  cycling the batteries and AGM batteries  and gel batteries that actually are have  vented caps and that you cannot top off  and there is no distilled water in the  battery the electrolyte is enclosed in  either a gel or an absorbed glass mat so  you've got all these different so  maintenance-free is one variable what's  the other variable well you're doing a  trade-off because with a flooded  lead-acid battery the number of cycles  that you can get at 50% at the discharge  is about 300 and with the AGM or gel  battery you're looking at a conventional  one maybe 450 and a Firefly 3600 so what  all that means is number of cycles  affect the life of the battery you know  a flooded lead-acid battery on average  and of course there's exceptions you  know on both sides of the spectrum the  flooded lead-acid battery you're looking  at about 4 to 6 years yes I've seen  owners that have make them last 8 9  years but I've also seen owners that  have their lead acid batteries only last  a year so on average you're looking at 4  to 6 years the other advantage an AGM  before I go forward AGM you're looking  at about you know maybe 5 7 8 years so  they're gonna last long the other thing  that's really useful and and good about  AGM battery  is that they have actually a deeper  depth of cycle and so generally if  you're looking at a ratio you'll need  three lead-acid conventional batteries  are only two AGM batteries so it's a  good way that if you've got limited  space and you're as a boater you're like  I want more capacity but I can't add  more batteries or wait on my boat then  what you would do and what I would  advise you to do is to get AGM batteries  the other thing too is that a AGM  battery is seal valve regulating meaning  that it does not emit a lot of gassing  when it's being charged so depending on  where the battery is located we've had  some motors where these batteries are  looking under a bed they're gonna be a  lot more comfortable with an AGM battery  located under their bed in a sailboat  than they would with a conventional lead  acid deep cycle battery if you've got  any questions and are wondering how do I  make a decision for choosing the right  battery for my boat  contact us at Pacific yacht systems  thanks for watching    

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