Tndeer Logo

Page 1 of 1 1
Topic Options
#3273885 - 06/23/13 09:19 AM Battery Tender or Charger?
12 Point

Registered: 09/30/05
Posts: 6877
Loc: Knoxville, TN

When you come in after a long day on the lake fishing, do you use a battery tender (1.5 amp) or a charger (10 amp) to recharge your cranking and trolling motor battery? I want to maximize battery life as much as possible.

I don't have an onboard charger on my new boat. Is it something I need to get? What are the Pro's and Con's of having one? What brand and model would you recommend? On my boat, one battery is located in the back of the boat and the other battery is located in the Center Console.
Winchester Model 70 Stainless Left Hand .270 Win.
McMillan Edge
Talley Lightweights
Zeiss Victory Varipoint #60 Illuminated

#3273893 - 06/23/13 09:34 AM Re: Battery Tender or Charger? [Re: Model70Man]
10 Point

Registered: 01/08/08
Posts: 2997
Loc: Memphis, TN

I think the onboards are the best thing going. If you have 2 batteries you need a 2 bank charger, the price goes up as the amperage goes up, but the additional amperage gives you a faster recharge.

I would go with at least a 5 amp per bank or higher, especially if you need to recharge overnight sometimes. Mine is 45 amp/ 15 amp per bank and it takes about 4 hours on a fully discharged battery for reference.

All of the onboards are waterproof and I'm pretty sure they are all multi-stage these days, which means you can plug it in and leave it until you want to fish. It will recharge and then keep a float charge on it automatically for you. On the 3 stage chargers, they are designed to actually reduce the sulphation on the battery plates which will also increase battery life over time. I have had good luck with MinnKota chargers, no breakdowns, but I know people who use the other brands too. I guess, like most things, I wouldn't get the cheapest one \:\)
Missed it by that much....

#3273932 - 06/23/13 11:51 AM Re: Battery Tender or Charger? [Re: MFBAB]
4 Point

Registered: 01/31/09
Posts: 372
Loc: west tn

I bought a refurbished bass pro brand 2 bank onboard charger and love it. Got it off eBay for a lot less then a new one and it came with a one year warranty. When I get off the water I just plug it in until I'm ready to go out. It's a 10 amp with transfer on demand. So if one battery is weaker then the other it will put more amps to it until they level out. Then once full charge they go in to a float mode. Like a trickle charge and just maintains a full charge until I'm ready. Best purchase I've made
#3274301 - 06/24/13 06:00 AM Re: Battery Tender or Charger? [Re: lockandloaded]
16 Point

Registered: 01/13/03
Posts: 10574
Loc: Warren Co

MF is on the money. Onboard charger is the way to go.

Did a lot of research and Minnkota got the best reviews. Most all the other brands had spotty quality control issues. Many would last only a year + then quit just after warranty.

LOVE my minnkota onboard charger
If you can't trust people with freedom, how can you trust them with power ?

#3274400 - 06/24/13 09:20 AM Re: Battery Tender or Charger? [Re: fishboy1]
4 Point

Registered: 09/23/06
Posts: 147
Loc: Nashville

I am a firm believer in the Battery Tender..I bought a new one when i got my 2000 Harley and finally bought a new Battery for it this Spring..13 years on a battery is pretty darn good in my opinion..I placed the tender on it every time i got done riding..A friend is having similar results using one on his boat..
#3274419 - 06/24/13 09:53 AM Re: Battery Tender or Charger? [Re: griz104]
10 Point

Registered: 11/14/00
Posts: 4021
Loc: LaVergne, TN USA

They are not all "waterproof". They are water resistant in that rain will not bother them but if completely submerged you could have a problem, although I will say if they are completely submerged you probably have more serious problems. Dualpro is here in LaVergne, and are great to deal with. You can get a charger from them "aquarium proofed", I got mine that way, it is "waterproof". They also sell reconditioned chargers you can save some money on. If my boat is not in the water my it is plugged in. Dualpro chargers not only charge the batteries they maintain them.
Patron Lifetime NRA member

#3274815 - 06/24/13 05:54 PM Re: Battery Tender or Charger? [Re: Headhunter]
Deer Assassin

Registered: 08/01/03
Posts: 88400
Loc: Kingston Springs

I have had a dual pro 2 bank on my triton since 2005

great product not a minutes worth of trouble
Drag Racing

Spending money I dont have

on things I dont need

to impress people I dont know

Page 1 of 1 1

Moderator:  RUGER, Unicam, CBU93, stretch, Bobby G, Cuttin Caller, Kimber45, Mrs.Unicam, Crappie Luck, gtk 
Hop to:
Top Posters
Deer Assassin
Crappie Luck
Newest Members
yarddawg54, schiesser, bigdoc, Bggamehunter, willy2763
13605 Registered Users
Who's Online
1 registered (jr450r) and 19 anonymous users online.
Forum Stats
13605 Members
43 Forums
100243 Topics
1180151 Posts

Max Online: 788 @ 11/11/13 08:06 PM
Moon Phase
Su M Tu W Th F Sa
1 2 3
4 5 6 7 8 9 10
11 12 13 14 15 16 17
18 19 20 21 22 23 24
25 26 27 28 29 30
Forum Donations
The TnDeer.Com Deer Talk Forum is for Tennessee Deer Hunters by Tennessee Deer Hunters. If you enjoy using our Talk Forum and would like to contribute to help in it's up-keep. Just submit your contribution by clicking on the DONATE button below and paying with PayPal or a major credit card. Any amount is much appreciated. Thanks for your support!

TN Burn Safe

Generated in 0.007 seconds in which 0.002 seconds were spent on a total of 14 queries. Zlib compression enabled.