"Best Battery" for OEM Replacement?

Factory battery

 

They have the Duracell Platinum 31M AGM for $179 right now. 200 RCM. Looks like the best deal going right now for those who have heavy draws on their charging system. This battery and a 100w solar panel system for $200 and you’re GTG for almost anything!
$379 for that system is better than $650+ for dual battery set-up (been there, done that, no thanks).
https://m.samsclub.com/ip/duracell-...nd-rv-battery-group-size-31dtmagm/prod3590232

 

My wife's 2005 Rav4 had a Panasonic, got 10 years out of it.

 

does this mean that the ECU starts its learning curve all over again?

 

Yes, the Long Term Fuel Trims and other learned variables are erased when battery power is disconnected from the ECM. It's been my experience with my previous Tacoma and Tundra, and my current 4Runner, that an engine in proper tune will run fine while the ECM re-learns. On the other hand, when my 4Runner was still running a stretched timing chain, the engine idled a bit rough until the fuel trims and whatnot re-learned.

 

wonder if i can attach a cable to a battery tender or another 12v battery and then disconnect and change battery

 

A battery tender won’t work because it’s only a low voltage trickle charger. You need a constant higher voltage. They sell these devices that use a 9 volt battery and plugs into a power port or cig lighter, some say they work and some say no. I don’t know either.

I think most people will say don’t worry about it. It will re learn pretty quick after you drive around a bit.

 

thanks......its driving so good now I hate to screw with it by changing battery.......if it needs to be done, i think i will do it....at least that way I know nothing else was messed with.....the 30k is coming up next week, i have bought cabin and engine filters, oil and the only thing i think i need is to do the brake fluid change, not flush...i just hate the dealers......you never know what some of those back yard 20 yr old garage monkeys are going to mess with

 

This is the little device I was talking about.

 

thank you .....i will check it out

 

Only 81 bucks to get it installed. Sweet deal

 

I saw that, too funny.

 

How do I get an East Penn Manufacturing battery on the west coast?

All I see are Johnson Control batteries made batteries made for Interstate, Toyota, Oreilly, Walmart, etc....

 

Johnson Controls is owned by East Penn. Truestart batteries are made by Johnson Controls, so a Truestart is an East Penn battery.

 

Really? Johnson Controls, Inc. is listed on the NYSE as ticker symbol JCI. What is East Penn's ownership position?

 

Almost 2.5 years later and zero issues.

 

Northstar AGM

 

Same here, I thought they were 2 different companies?

 

they are.

 

I think I’ll go with the Costco Interstate 27F the next time I need one.