Recent Topics
Fram PH/TG/XG3593a cut open
by SlavaB - 08/24/19 08:12 PM
Supertech vs OEM
by Bettez88 - 08/24/19 08:05 PM
Exxon Mobile Synergy Supreme Friction Modifier
by IndyFan - 08/24/19 07:50 PM
Toyota oil cap funnel
by Patrick0525 - 08/24/19 07:07 PM
STUMPED (2002 BMW X5)
by Kira - 08/24/19 05:43 PM
Turtle Wax Zip wash/wax...garbage!
by gregk24 - 08/24/19 05:41 PM
Does Super Lube Oil make Good Electric Motor Oil
by vortex - 08/24/19 04:40 PM
26 degree temp swing in 24 hours
by gman2304 - 08/24/19 04:12 PM
FEDERATED PG4459F CUT OPEN
by 53' Stude - 08/24/19 03:58 PM
Reverse mortgage questions.
by callbay - 08/24/19 03:45 PM
Moly vs No Moly
by Navi - 08/24/19 03:08 PM
M1 5W30 SN+ D1/G2 VOA ?
by ChrisD46 - 08/24/19 03:04 PM
Castrol 0w40 no longer LL-01 ?
by Ndx - 08/24/19 02:32 PM
Different TGMO bottles?
by gwiffer - 08/24/19 02:07 PM
Oil change before car sitting 1 year?
by clarkflower - 08/24/19 12:47 PM
Newest Members
EricTwoCamaros, Subie5w30, Iautox, Mayadi, YachtRocket
69055 Registered Users
Who's Online Now
98 registered members (53' Stude, 2015_PSD, 77GrandPrix, alchargo, Ag76, 8 invisible), 1,949 guests, and 24 spiders.
Key: Admin, Global Mod, Mod
Forum Statistics
Forums67
Topics293,745
Posts5,046,034
Members69,055
Most Online3,532
Jul 30th, 2019
Donate to BITOG
Print Thread
Hop To
Page 1 of 2 1 2
Determining if car battery has much life left #5162641 07/16/19 02:47 PM
Joined: Aug 2015
Posts: 1,219
paulri Offline OP
OP Offline
Joined: Aug 2015
Posts: 1,219
I have put my cars on a 33-36 month preemptive replacement schedule (I find they conk out at that time). I have a new to me Highlander that has been parked in a garage (my cars are outside 24/7), and so far, has had 4-5 years on batteries (car has been in the same area as I live in). The three year anniversary of its replacement is Oct 2019. The cheapo in me wants to try to squeeze as many more months out of the battery as I can get. The impatient part of me that hates it when I have to call a tow truck, wants to replace it now.

I called my local WM TLE and I was told that I can bring the car in, and that it would take about an hour or so, but they can test the battery to see how much life is left in it. Is this a reliable test? Is there in fact a reliable test for how much charge is left in the car battery (I'm talking about the 12v, not the hybrid traction).


2005 Toyota Sienna LE; 163,000 miles
2006 Toyota Highlander Hybrid 118,000 miles
Re: Determining if car battery has much life left [Re: paulri] #5162651 07/16/19 02:53 PM
Joined: Sep 2015
Posts: 2,057
M
mk378 Offline
Offline
M
Joined: Sep 2015
Posts: 2,057
Hybrids probably don't make a lot of demand on the 12 volt battery. As long as there is charge in the traction battery that is what starts the engine.

The standard test for car batteries is the load tester. It draws 200 or 300 amps from the battery to simulate a conventional car starting, and watches how low the voltage goes. The test itself takes less than a minute. Most of the 1 hour at Walmart will be waiting.

Re: Determining if car battery has much life left [Re: paulri] #5162654 07/16/19 02:58 PM
Joined: Sep 2007
Posts: 1,257
J
JMJNet Offline
Offline
J
Joined: Sep 2007
Posts: 1,257
You can DIY, just get a battery load tester from HF for under $20.
It is an analog type, you can do the test every month to see a trend if it is trending to go bad.

Instead of waiting for 1 hour everytime at Wally.


  • 2017 Toyota Sienna
  • 1995 GMC Suburban 6.5L Turbo Diesel


Re: Determining if car battery has much life left [Re: paulri] #5162655 07/16/19 02:59 PM
Joined: Apr 2017
Posts: 2,245
H
hallstevenson Offline
Offline
H
Joined: Apr 2017
Posts: 2,245
I think the test they do is a "load" test, which tells you how strong it is, i.e. for starting the car. It can't predict the remaining life of a battery though.

Re: Determining if car battery has much life left [Re: paulri] #5162660 07/16/19 03:02 PM
Joined: Mar 2004
Posts: 22,659
D
Donald Offline
Offline
D
Joined: Mar 2004
Posts: 22,659
A conductive test will tell you how much CCA is currently in the battery and the label says how much when new. Its pretty reliable. They probably have a Midtronics tester. Hopefully it takes into account battery temp.

You can buy lower end versions of these testers for $40 to $60.

A temp compensated load test using 1/2 CCA for 15 seconds and check voltage at the 15 second mark is better but few places use this as the battery has to be fully charged.


2015 Subaru Forester 2.5 engine/CVT
2015 Ford F250 w/Powerstroke
2016 Subaru Crosstrek CVT (wife's)
Re: Determining if car battery has much life left [Re: paulri] #5162681 07/16/19 03:21 PM
Joined: Nov 2011
Posts: 316
S
spavel6 Offline
Offline
S
Joined: Nov 2011
Posts: 316
Might be worth investing in a jump-n-carry (https://www.amazon.com/Clore-Automotive-Jump-N-Carry-JNC660-Starter/dp/B000JFJLP6) and not replace batteries earlier than they need to be. I've found that good batteries last 6+ years without an issue. It seems that 36 months and throw-away is a bit wasteful and uneconomical..

My unit can jump start a completely dead VW diesel, so I'm sure a Toyota would be no problem. Then when/if the battery dies, you can jump it and replace it without calling a tow truck. Plus added protection in case you leave the lights on overnight smile


2003 VW Jetta Wagon TDI 198k M1 5W40 TDT
2001 VW GTI VR6 250k T6 5W40
2001 VW Passat Wagon V6 4motion 110k PP 5W30
Re: Determining if car battery has much life left [Re: paulri] #5162695 07/16/19 03:44 PM
Joined: Sep 2002
Posts: 3,095
G
Gebo Offline
Offline
G
Joined: Sep 2002
Posts: 3,095
Get your own load tester. Great $40 or so investment.


'98 LEX LS400 295K
'02 4Runner 240K
'05 Lex LS430 85K
'07 Lex GX470 65K

SuperTech Oil
Toyota ATF's and Coolant
Amsoil Gear Oil and Grease
(Subject to Change as the Wind Blows)
Re: Determining if car battery has much life left [Re: spavel6] #5162701 07/16/19 03:53 PM
Joined: Aug 2015
Posts: 1,219
paulri Offline OP
OP Offline
Joined: Aug 2015
Posts: 1,219
Given that my batteries for years have died just before or just after 36 months, this isn't a number I just picked randomly. I'd rather drive to a store and get a new battery on my time, than have to call a tow truck, and hope my family doesn't need our other car that day when I want to go somewhere.

Originally Posted by spavel6
Might be worth investing in a jump-n-carry (https://www.amazon.com/Clore-Automotive-Jump-N-Carry-JNC660-Starter/dp/B000JFJLP6) and not replace batteries earlier than they need to be. I've found that good batteries last 6+ years without an issue. It seems that 36 months and throw-away is a bit wasteful and uneconomical..

My unit can jump start a completely dead VW diesel, so I'm sure a Toyota would be no problem. Then when/if the battery dies, you can jump it and replace it without calling a tow truck. Plus added protection in case you leave the lights on overnight smile


2005 Toyota Sienna LE; 163,000 miles
2006 Toyota Highlander Hybrid 118,000 miles
Re: Determining if car battery has much life left [Re: paulri] #5162706 07/16/19 04:02 PM
Joined: Jun 2003
Posts: 34,764
E
eljefino Online Content
Online Content
E
Joined: Jun 2003
Posts: 34,764
Where does the Highlander keep its 12v battery? If not underhood, there might be less heat-related stress.

The Prius community has jump started a dead 12v system with a Dewalt drill battery and other lightweight aids.

Re: Determining if car battery has much life left [Re: eljefino] #5162709 07/16/19 04:04 PM
Joined: Aug 2015
Posts: 1,219
paulri Offline OP
OP Offline
Joined: Aug 2015
Posts: 1,219
It is under the hood. I think what helped keep it from the heat cycles was that it was stored in a garage that stayed reasonably cool (for a garage in the desert). But now that I own it and store it outside, the battery should suffer more heat/cold cycles.

Originally Posted by eljefino
Where does the Highlander keep its 12v battery? If not underhood, there might be less heat-related stress.

The Prius community has jump started a dead 12v system with a Dewalt drill battery and other lightweight aids.


2005 Toyota Sienna LE; 163,000 miles
2006 Toyota Highlander Hybrid 118,000 miles
Re: Determining if car battery has much life left [Re: paulri] #5162716 07/16/19 04:09 PM
Joined: Jan 2003
Posts: 3,267
E
edwardh1 Offline
Offline
E
Joined: Jan 2003
Posts: 3,267
who drives this car, and in what conditions - Darkness, cold lonely roads, bad crime areas ?

I like3 year changeouts


These products are all new every year?? They are a revolution!!! Razor blades, mens shirts, TVs, wiper blades, gutter guards, hearing aids... according to the ads. But also all new last year
Re: Determining if car battery has much life left [Re: edwardh1] #5162720 07/16/19 04:17 PM
Joined: Aug 2015
Posts: 1,219
paulri Offline OP
OP Offline
Joined: Aug 2015
Posts: 1,219
desert region. exurb area, not lonely roads, no bad crime areas that I drive through. Plus I do have a cell that I keep charged 99% of the time.


Originally Posted by edwardh1
who drives this car, and in what conditions - Darkness, cold lonely roads, bad crime areas ?

I like3 year changeouts


Last edited by paulri; 07/16/19 04:17 PM.

2005 Toyota Sienna LE; 163,000 miles
2006 Toyota Highlander Hybrid 118,000 miles
Re: Determining if car battery has much life left [Re: paulri] #5162731 07/16/19 04:33 PM
Joined: Sep 2009
Posts: 194
Z
zvm77us Offline
Offline
Z
Joined: Sep 2009
Posts: 194

Re: Determining if car battery has much life left [Re: paulri] #5162769 07/16/19 05:14 PM
Joined: Aug 2015
Posts: 1,219
paulri Offline OP
OP Offline
Joined: Aug 2015
Posts: 1,219
For those recommending that I get a load tester--here is one @ HF for $20. $20 sounds like it could easily pay its way for me with a few months extra use of a battery, as well as still let me know that the battery has enough power for me to drive to WM to get my next one. The ratings are pretty high, 4.5/5 stars from over 500 reviewers.

I take it that this isn't so cheap that it would fall apart, or give me inaccurate readings?


2005 Toyota Sienna LE; 163,000 miles
2006 Toyota Highlander Hybrid 118,000 miles
Re: Determining if car battery has much life left [Re: spavel6] #5162776 07/16/19 05:28 PM
Joined: Jan 2017
Posts: 3,116
M
maxdustington Offline
Offline
M
Joined: Jan 2017
Posts: 3,116
Originally Posted by spavel6
Might be worth investing in a jump-n-carry (https://www.amazon.com/Clore-Automotive-Jump-N-Carry-JNC660-Starter/dp/B000JFJLP6) and not replace batteries earlier than they need to be. I've found that good batteries last 6+ years without an issue. It seems that 36 months and throw-away is a bit wasteful and uneconomical..

My unit can jump start a completely dead VW diesel, so I'm sure a Toyota would be no problem. Then when/if the battery dies, you can jump it and replace it without calling a tow truck. Plus added protection in case you leave the lights on overnight smile
If OP does not need to jump cars all the time a lithium jump pack will be sufficient and much cheaper than a JNC. I just bought one for $90 CAD and it went on sale for 33% off on prime day.


03 Jetta AWP/09A 210k kms
Edge 0W40 + Mann 719/30
Page 1 of 2 1 2
Previous Thread
Index
Next Thread

BOB IS THE OIL GUY® Powered by UBB.threads™