Is it best to drain down the batteries the first time you use them as I was told that to set up the electrlytes in the battery properly that you have to drain the battery down to 0-volts, true or untrue?
I keep getting different opinions! 
I beleive that’s a myth. Used to have to do with “memory” but my understanding is that today’s batteries don’t need to be drained completely. Not at all… What do others have to say???
Never completely discharge a deep cycle battery. Even if you only use it for an hour, keep it fully charged.
I think that applies to rechargable ni-cad batteries,
but not deep cycle marine batteries.
I’m not sure about the new gel-cell batteries.
Doe’s anyone have any feeling about how susseptible
the gell call batteries are to developing a “memory”.
I’ve always recharged my trolling motor batteries as soon as I got home. I typically get 6 or 7 years use out of them, so I think this is a good procedure.
Do you need a two bank on board charger for two 12v batteries in parralell?
Could you get by with a one bank beeing both batteries are tied together + to +, and – to -? 
Talked to the people at Minn Kota and they told me I had to have a two-bank charger no matter if it was in parralell or in series!
You can get a 2 bank charger for a little over 100 bucks. Thgat might be good news or bad news depending on how you look at it I guess… Take a look at some battery chargers at this link to get an idea of prices and see what’s out there. That little MK 210 has been awfully popular (it’s hard to keep it in stock!).
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