Battery Life?
#31
Driver School Candidate
I would definitely keep voltage on the system while swapping out the battery. If you don't know how, or don't have the tools to keep voltage on the system, I would recommend having the battery replaced by either Lexus or NTB (National Tire & Battery) or some other equally qualified shop. The price for a replacement battery from Lexus is very fair. Some people have had quirky things (MAF needed cleaning due to rough engine, emergency brake lock, etc.) happen when not maintaining voltage on the system, which cost some of them a towing charge, time and money to get sorted out.
#32
I would definitely keep voltage on the system while swapping out the battery. If you don't know how, or don't have the tools to keep voltage on the system, I would recommend having the battery replaced by either Lexus or NTB (National Tire & Battery) or some other equally qualified shop. The price for a replacement battery from Lexus is very fair. Some people have had quirky things (MAF needed cleaning due to rough engine, emergency brake lock, etc.) happen when not maintaining voltage on the system, which cost some of them a towing charge, time and money to get sorted out.
ETA: Another piece of advice for DIY types... if you buy a new battery charge that ***** up before installing- a lot of those things sit on the shelf for many months at a time and not fully charged. No use beating your alternator up over nothing if you can top it off before installing.
-Mike
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psinsyd (07-30-19)
#33
All other things aside, people that don't drive will replace their batteries less often than people that do. I can never get more than 3 or 4 years out of a battery. I know other guys that do **** for miles and never replace the battery before they dump the car/truck it was in! Friend of mine just traded in his 04 Tacoma not long ago and it still had the original battery in it, but that truck had crap for miles on it. Was used every day almost but his commute is about a 1/4 mile. Truck spent more time idling than driving! (because of his remote start).
ETA: I agree that, if you live in hell on earth, time will just kill the damned things. Friends I have down south never get more than 3-4 yrs regardless of habits, the heat just beats the **** out of them.
-Mike
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psinsyd (07-30-19)
#34
Lexus Test Driver
iTrader: (1)
My 2013 450h battery finally died. There is no warning for this battery it works great until one day you can't open the door with fob.
The original battery was a Panasonic
Group: D26
20HR 57Ah
CCA 450A
10" x 6.5" x 8"
37.2 lb
Cost $355 plus tax at Lexus Dealer
I'm replacing it with:
20HR 70Ah
CCA 760A
11 x 6.9 x 7.5
47.5 lb
Cost $193 plus tax, 2 day shipping. I work from home so don't mind waiting for a battery.
The new battery is physically slightly larger, bigger capacity, and 10lb heavier, so should be more than enough.
It also has the vent hole in the same location as oem. Important to connect the stock vent line to the battery since it's located in the trunk.
The original battery was a Panasonic
Group: D26
20HR 57Ah
CCA 450A
10" x 6.5" x 8"
37.2 lb
Cost $355 plus tax at Lexus Dealer
I'm replacing it with:
DieHard 50748 Group Advanced Gold AGM Battery
Group: 4820HR 70Ah
CCA 760A
11 x 6.9 x 7.5
47.5 lb
Cost $193 plus tax, 2 day shipping. I work from home so don't mind waiting for a battery.
The new battery is physically slightly larger, bigger capacity, and 10lb heavier, so should be more than enough.
It also has the vent hole in the same location as oem. Important to connect the stock vent line to the battery since it's located in the trunk.
Last edited by peasodos; 10-16-19 at 03:45 AM.
#35
Yeah I usually have to replace batteries around the 3-4 year mark down here where its really hot. No way around it. It's just too hot down here where the heat just destroys these batteries. Some of my cars that sit for a long time and go unused that eventually get deeply discharged damages the batteries even quicker. These lead acid batteries like to be kept fully charged and will deteriorate quicker in cars seldomly used and not on a battery maintainer.
#36
Yeah I usually have to replace batteries around the 3-4 year mark down here where its really hot. No way around it. It's just too hot down here where the heat just destroys these batteries. Some of my cars that sit for a long time and go unused that eventually get deeply discharged damages the batteries even quicker. These lead acid batteries like to be kept fully charged and will deteriorate quicker in cars seldomly used and not on a battery maintainer.
#37
Yeah its definitely up there on my list of to-do. I do worry about lightening strikes and possibly a surge going into the car electronics, I am pretty sure this is an unnecessary concern and could potentially be alleviated with surge protectors and what not but yeah that always scares me. I live in an area that rains a lot.
#39
My 2013 450h battery finally died. There is no warning for this battery it works great until one day you can't open the door with fob.
The original battery was a Panasonic
Group: D26
20HR 57Ah
CCA 450A
10" x 6.5" x 8"
37.2 lb
Cost $355 plus tax at Lexus Dealer
I'm replacing it with:
https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1
20HR 70Ah
CCA 760A
11 x 6.9 x 7.5
47.5 lb
Cost $193 plus tax, 2 day shipping. I work from home so don't mind waiting for a battery.
The new battery is physically slightly larger, bigger capacity, and 10lb heavier, so should be more than enough.
It also has the vent hole in the same location as oem. Important to connect the stock vent line to the battery since it's located in the trunk.
The original battery was a Panasonic
Group: D26
20HR 57Ah
CCA 450A
10" x 6.5" x 8"
37.2 lb
Cost $355 plus tax at Lexus Dealer
I'm replacing it with:
https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1
DieHard 50748 Group Advanced Gold AGM Battery
Group: 4820HR 70Ah
CCA 760A
11 x 6.9 x 7.5
47.5 lb
Cost $193 plus tax, 2 day shipping. I work from home so don't mind waiting for a battery.
The new battery is physically slightly larger, bigger capacity, and 10lb heavier, so should be more than enough.
It also has the vent hole in the same location as oem. Important to connect the stock vent line to the battery since it's located in the trunk.
I'm still rocking the original battery in my 2013, but I'm sure my time could come at any time.
~ Im2bz2p345
#40
Lexus Test Driver
iTrader: (1)
Just curious why you didn't go with the DieHard Group 35 (to match the original).
I'm still rocking the original battery in my 2013, but I'm sure my time could come at any time.
~ Im2bz2p345
I'm still rocking the original battery in my 2013, but I'm sure my time could come at any time.
~ Im2bz2p345
I wanted a battery with at least the factory capacity. It will be sort of an upgrade in that it has more capacity and it was only a few $ difference. In the 450h battery thread the guys from Europe posed about a Toyota battery that was 65aH capacity, only $120, and vented. This would have been perfect for my car, but I searched and searches could not find the equivalent battery for the USA.
The Diehards had better rating on Amazon than the Optima Yellow top, also several guys in the 3gs forum reported issuies with the yellow tops pre-maturely failing in the 450h.
I took some measurements and found out the battery tray has a length of 10", the Diehards are slightly bigger than this. Lexus purposely made a weird battery size to make you buy the original one.
So I have to hack saw the side of the battery tray. I first tried drilling out the pinch welds, but could not pull it apart, so hack saw is the only solution. I plan on resparing the exposed metal to prevent any potential rust. Lexus used a strong metal for the tray too.
Lol a lot of work to change a battery, but I like the challenge. I'll post pics when I finish the tray mod tomorrow.
There is a metal bar the bolts down from the top that hold the battery in place, so it's not going anywhere.
The original battery on my car lasted 97k miles 6-7 years assuming it was sold/made in 2012. That's one hell of a battery, but I didn't want to pay $400 for a battery.
Last edited by peasodos; 10-16-19 at 07:53 PM.
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Im2bz2p345 (10-16-19)
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jonathancl (10-21-19)
#43
Couple weeks ago I changed the battery in my father-in-laws gs350. 2013 with 20k miles and original battery. Bubbled up a little bit. But I was told the alternator is bad. Any one have experience. Held voltage at 13.42v constant and nothing lower. Didnt change the alternator since in my opinion it’s perfectly fine.
#44
Lexus Test Driver
iTrader: (1)
Amazon failing me lol, Battery was supposed to deliver tomorrow now tracking says Monday. I did a live chat with UPS and they said Amazon tendered it past the cutoff to deliver tomorrow. Went to Amazon live chat asked for a supervisor told them this will cost me $30-50 in Uber fees. They issued me a $30 credit, but don't really need my car this weekend, just use the fiancée's. Well at least I get $30 off the battery.
#45
Lexus Test Driver
iTrader: (1)
Well this turned into quite the project. I ended up having to hack saw the bottom edge of the battery(they have this nonessential plastic buffer around the edge probably to get dimensions closer to group 48), the Amazon battery dimensions were incorrect.
Also it's a tight fit in the trunk, but it fits, car is alive again.
The oem battery was $411.28 including tax at the dealer
The Diehard cost me $175.63 after the $30 Amazon discount.
So for $235.65 savings and a project, it was worth it to me Also next battery change will be much easier.
Also it's a tight fit in the trunk, but it fits, car is alive again.
The oem battery was $411.28 including tax at the dealer
The Diehard cost me $175.63 after the $30 Amazon discount.
So for $235.65 savings and a project, it was worth it to me Also next battery change will be much easier.
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ChronoR (10-21-19)