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Battery Maintainer

Old 08-07-2013, 05:44 AM
  #1  
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Default Battery Maintainer

Right now when I leave my boat in the marina to come home I place a battery maintainer on my battery since I only have one battery. This is the one I use:

Amazon Amazon

I placed some velcro and attach it when I am done boating. When I come the next time I disconnect everything and put it in the cuddy. As I look around to use something I may actually attach to the boat all the maintainers seem to be closer if not over $100. Can someone help me understand the dramatic difference that would cause such a price disparity?
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Old 08-10-2013, 04:53 PM
  #2  
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M A R I N E--equals 3 x the price. Seriously, a good small marine unit will be epoxy potted so there is no chance of corrosion--it will have a 3 stage or 4 stage smart charger, it will be explosion proof etc. One of my current boats came with two of these, and the first thing I did was to toss them and put in a good marine charger hard wired.
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Old 08-10-2013, 11:21 PM
  #3  
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Originally Posted by Rip131313 View Post
Right now when I leave my boat in the marina to come home I place a battery maintainer on my battery since I only have one battery. This is the one I use:

http://www.amazon.com/Schumacher-SEM.../dp/B0009IBJAS

I placed some velcro and attach it when I am done boating. When I come the next time I disconnect everything and put it in the cuddy. As I look around to use something I may actually attach to the boat all the maintainers seem to be closer if not over $100. Can someone help me understand the dramatic difference that would cause such a price disparity?
On my previous boat (single 85 Ah battery) I used a
waterproof 800mA Battery Tender waterproof 800mA Battery Tender
. and it worked perfectly. That's less than 20 Ah of charging per day, but the boat was stored on a trailer so I didn't have to worry about any 24-hr loads potentially drawing the battery down.

I left the battery tender permanently attached to the battery (via ring terminals), so when I got home I just plugged it into an outdoor extension cord. The tender itself appears to be completely waterproof -- I left it exposed to weather so I could monitor the charge status LED from outside the boat, and it's still working today (I use it on land vehicles now).
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Old 08-11-2013, 07:07 AM
  #4  
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Default charger

battery tender x2
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