Will my car battery charger work for trolling motor battery?

[riverbasser]

Ok @Way2slow  if your slow I don't know what I should be called lol. To make sure I'm comprehending everything, we want a 10-15 amp smart charger with automatic/float maintenance mode that once in this mode delivers no more than 13.2v and is preferably adjustable?

 

 

If I got all that right do you have any brands to reccomend for us? Thanks again

[Choporoz]

Great stuff, @Way2slow.  Thank you much for taking the time. 

 

This thread (or at least W2S's posts) might/should be pinned.

 

I've been using a NOCO Genius 7.2A charger (from Amazon) with good results.  I recently 'acquired' a newish Schumacher like the one pictured earlier in this thread.  Both seem to satisfy my requirements (3 size 27 Interstate batteries - TM use only.)  Best I can tell...and after I test the maintenance voltage....I can safely use these chargers for charging and for winter 'maintenance'.

 

    New question.  For my yak sonar, I use 12V 9Ah sealed lead acid (SLA) batteries.  My first purchase of these came with a charger that was simply a block that plugged in and had two small gauge wires/clips.  Not so much as a single indicator light.  Instructions said to charge batteries for 24hrs...not much less....and be careful not much more.  That worked very well for a couple years.  This past spring, I had the bright idea to use my NOCO charger instead...because, well....they're 12V batteries...and it is a genius charger, right?  One battery was shot in a couple months...maybe it was just old and at the end of its life...IDK.      So...my question is:

 

-Can/should I use the NOCO and/or Genius to charge 9Ah SLA batteries?  Better to just use the cheap cord charger that came with?

[Hez]

The maintenance voltage on my Battery Tenders are 13.1 across the board.  They charge at 13.6