Costco uses Interstate batteries, arguably the best out there. If it is the correct battery installed even those temps shouldn't be an issue on a new battery. Did you have the alternator checked for proper charging? The Sienna is old enough to have hidden issues like internally corroded cables and/or bad grounds (voltage drop). Even a slipping belt.

 

I will check those today when it is inside the garage. I know I checked for voltage drop not too long ago.

I do like Costco car batteries, I use them on all our cars.

 

That's not good. I just replaced my 8 year old Walmart Everstart Maxx with a Costco Interstate battery last week. Went with the Interstate battery because it was cheaper at $123 compared to $140.

 

My other Costco batteries are 5yrs old and are still testing good, this could be a fluke.

 

I know from experience that Costco batteries can fail. I bought an Interstate battery from Costco, removed the old one, and installed the new one. But when I tried to start the car, there was nothing—no crank, no click, nothing.

Thinking I might have blown a fuse or caused a short, I measured the battery's voltage, and it was only around 7 volts. I put the old battery back in, and the car started right up.

 

I measured the battery's voltage, and it was only around 7 volts. I put the old battery back in, and the car started right up.

Voltage on ours was good but the CCA was bad and did not start the car on a 19F day.

 

No voltage drops on a few spots I tried in the engine bay (voltmeter cable is too short) and tested for charging voltage (passed per topdon).

Forgot to say in my OP, I have a Gooloo gp4000 that saved the day. First time using it, we'll worth the $69 I paid for it.

 

When mine failed ( Interstate) , the rep at Costco told me that he was seeing more early failures ever since the batteries were being made in China. I have not confirmed this. I plan on getting 3 years out of the Everstart max. After that I'm on borrowed time hence the reason I have one of those jumper battery pack which came in handy recently. Walmart use to have the 3/5 year replacement/prorated warranty but it seems the industry is moving just to 3 years replacement and thats it. Wink Wink...2years 10 months or so take your battery in for replacement especially to a location that does not have an auto center. After the free replacement you will be told that is the end of the deal and that you will have to purchase another again. So you will get close to 6 years on a single purchase. hehe.

 

When mine failed ( Interstate) , the rep at Costco told me that he was seeing more early failures ever since the batteries were being made in China.
hehe.

Didn't know that. Costo has seemed to hit that sales model used by many

Get the customers expectation and loyalty based on best value, lowest price or even familiarity. Start dropping quality/quantity first then raise price.

To thier credit theyve done fairly well all things considered the past several years of hyper inflation

 

.
I guess we should end this off topic line of discussion soon if not now.

Naw thats no issue. Civilized speak is good.

You must be too young to know what hyperinflation really looks like by US standards.

Got a pleasant "smerk" from that one 😄, you're as young as you feel I guess, no insult taken. I will say I remember the Vietnam war, Nixon against McGovern.
I add I get it that we aren't seeing googles definition of 50% increases in a month. At the same time inflation numbers qouted are skewed at best. Its all propped up with pretend money on top of that. Being a youth nowdays and affording a new car or house for a majority of this nation isn't at all the same. Yeah recent rates arent like the 80's but my starter house in 87 was only just over 2.5 times what i made. (In Ca. Too) Such a divide where the middle class used to be. 1974 was nothing compared to now in the real world.

I believe from his other writings that @Smerk is actually well aged.

Like a fine wine!

 

Naw thats no issue. Civilized speak is good.

Indeed, I learned something new even off topic.

 

I, too, like the OP, bought an Interstate battery at Costco. Unlike him, I bought it about 18 months ago. Had it tested at Advance Auto Parts, and it was bad. Took it to Costco, got a replacement for only about the same price as OP did. One plus, among many, with Costco is that if you use Citi Visa coupled with Executive membership (which I have), you get 2% cash back. I've used only batteries from Costco since 2009. I see no reason to look elsewhere. But that's just me.

 

Currently, the H5 Interstate Costco battery for the GEN4 is AGM style only for $198. The Walmart Everstart Platinum is AGM for the same price at $198. The different between the 2 would be the warranty, Walmart is better.

Most folks here have been talking more about the Max, which is the flooded type. Everstart in general has not had the best reviews.

But maybe AGM would fair better?
Would it be best to still get the Plat Everstart?

 

I installed one of those USB sockets with an integrated volt meter display in my 2008 Sienna. When the battery light went on, I was able to see the voltage number dropping and changed course to nearest auto parts store. Was able to limp in and get the last alternator they had in stock and spent the next four hours changing it in their parking lot. Little off topic, but I'm glad I had the live voltage data or I would have probably tried to get home and would have ended up getting towed off of the freeway that day.

 

Just catching up on my reading. While I too commented about the past compared to the present (16% mortage rates of years go compared to today), the most recent post or two will likely result in a range war between opposing political views. I'd like to avoid that here, so I may have to do some trimming to keep the peace. I'm sure you folks understand.

 

Ahhh the above was swift

And to my point

 

Ahhh the above was swift

And to my point

EDIT
real post 37-39?
chuckle

 

I love Costco but had a bad experience with their Interstate battery. Great price but in 11 months was stranded 3 times, and the last time AAA showed the battery was bad needing replacement. I've had many cars and this is the 1st battery that lasted only 11 months. I returned and the refund is prorated by Costco per the agreement. I've have found a number of similar experiences with other members. I just could not go through getting another Costco battery. I got a Walmart battery 36 month warranty with full replacement. No issues..strong start response. High praises from friends.

 

I love Costco but had a bad experience with their Interstate battery..

We are a car family and always have had great luck with Interstate batteries and Costco. Cant beat their prices. They sell both lead/acid and AGM type batteries for most cars. My Sienna has a recent Interstate lead/acid with no issues. We just went thru this last night to replace the faulty Costco AGM Interstate battery that we have in my wifes little diesel 1983 VW Rabbit pickup. It sits and is rarely driven. It can sit for a year but starts 1st time everytime. The charging system is 100% functional but the AGM has proven to go dead when sitting over time.

We learned some valuable info on both Costco warrenty AND AGM type batteries. AGM 《A...something or other Glass Mat) batteries are good for constant use like in a start/stop application like in a hybrid or short trip daily driver. They aren't great for longer term stored cars as they tend to go dead, don't trickle charge well AND in my experiance is they are difficult taking a charge once down and dont fully recover. Good old lead/acid type batteries seem to work better here. We replaced the old Costco Interstate d5 AGM with a d5 lead/acid. Same 650 cca and physical dimensions but was lighter. The price Wasn’t.

The NEW Costco warrenty coverage recently changed from 3 years of full free replacement to 3 year prorated. (I was 3yr & 5 mo.'s old)...errrr! Interstate was always a premium battery I've had great luck with but as everything Interstate has been compromised and gone to china outsourcing. Soooo...?

My take away here is there are 4 types of baterries I'm aware of;
1 AGM
2 lead/acid
3 gei
4 lithium

Depending on the application I would choose the best suited type.

Costco carries both lead/acid AND AGM, at least for some applications.

Improper type choice can be problematic

 

Try replacing the brushes first: https://www.siennachat.com/threads/.../threads/06le-141k-miles-battery-symbol-on-instrument-cluster-illuminated.79990

Sixto
04 LE FWD 240k miles

 

@Azul

My apologies all, I didn’t recognize this was Gen2.