Amphicar Battery

jfriese

Active Member
A Group 22NF is what fits the original metal box. Watch the terminal placement since that series has some variation of the terminals.

John Friese
67 White
67 Red
 

Tedredamphi

Platinum Subscriber
I ended up buying an I-45 battery from Interstate Batteries. The case dimensions are identical to the 22NF. 22NF has 390 cold cranking amps while the I-45 has 480 cold cranking amps. Terminals are reversed on the I-45, which will look correct if you have converted to negative ground.
Ted
 

Canadian four amphs

Amphicar Expert
I use the AC DELCO battery.. series 55 aval with posts for pos. or neg ground, will be putting one in Tommys car and will post the exact # for pos ground then.
Its always good to buy one from a company that is continet wide incase of war. problems down the road.
GORD.
 

mike_israel

Amphicar Forum Admin
Staff member
I am a HUGE fan of Optima spiral cell batteries for the Amphicar, they do come in various group sizes.

Optima will NEVER leak acid so will not be the cause of rust. This is especially important if you still have a generator as boil-over is more likely. They can sit for extremely long periods without discharging, a big advantage in infrequently used cars. They will continue to work even fully submerged (don't ask me how I know).

My Optima battery is now going on 10 years old which I think is amazing. It has almost become a science experiment to see when it will finally die.

You can buy the Optima batteries on Amazon with free shipping! There was recently a $25 dollar rebate running on them as well but it may have run out this month.
 

webtoes64

Member
I agree w/Mike's comments on Optima batteries.
I have had an Optima battery in my amphi for the last 18+ years...

I left the first one in for 10+ years and then swaped it out to a land yacht that needed a new battery and purchased a new Optima for Amphi... the replacement is now going on over 8 years and still working like a charm.

If you replace the battery cables w/new ones at the time of Optima install you will never see a hint of battery acid corrosion.

As Mike said... there is almost zero discharge from sitting idle.

Also the cold cranking amps are not affected by extreme cold temps like a conventional lead acid battery.

They are available at part stores and batteries plus etc... but check around because you can find quite a bit of price difference between sellers.

Steve B
 

Canadian four amphs

Amphicar Expert
Ok Im back on line at Rehab center,
Comp. in next room..
I did go out and get the # off battery but Ar plane crash,, and here I am

Cant remember all the # but was Delco with 51 in the formula
GORD SOUTER
 

Canadian four amphs

Amphicar Expert
I use the AC DELCO battery.. series 55 aval with posts for pos. or neg ground, will be putting one in Tommys car and will post the exact # for pos ground then.
Its always good to buy one from a company that is continet wide incase of war. problems down the road.
GORD.
plane crash has put me in hospital;:012: I do remember #51 in the delco part
 

chasgould

New Member
Ok Im back on line at Rehab center,
Comp. in next room..

Hey Gord,
Great to hear your "voice". We are all happy that you are okay, and that you are on the mend. That must have been a really scary episode. I hope that you will continue to heal quickly, and it is great to have you back.
Charles
 
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