Battery ES300H
#31
#32
Lead Lap
Be smart. If you're a Costco member buy their Interstate for around $85.00. Four year free replacement then pro rated... When it dies go get another one and you're done. Can't do better anywhere... My Corvette battery (the '66) is 9 years old and going strong...
#33
~$430 installed from JM lexus.... ouch. not even deerfield toyota had the battery.
(EDIT) took deliver ***12/23/2012** 72k on the clock. (I remember because toyota didn't have their model year out yet)
tried a few auto parts, no luck.... plenty of room for a bigger cheaper battery.
fyi, if the computer sees 12v from the starter battery , it will keep running. the only time it needs the starting battery is at start up.
from a lexus service tech... I was trying to over ride the hybrid to make sure it kept running for 20 min to the dealer....
- I didn't get that working so called lexus service mgr who conferenced in the mechanic.
(EDIT) took deliver ***12/23/2012** 72k on the clock. (I remember because toyota didn't have their model year out yet)
tried a few auto parts, no luck.... plenty of room for a bigger cheaper battery.
fyi, if the computer sees 12v from the starter battery , it will keep running. the only time it needs the starting battery is at start up.
from a lexus service tech... I was trying to over ride the hybrid to make sure it kept running for 20 min to the dealer....
Last edited by mrBillFL; 09-13-18 at 05:57 PM.
#34
Oh, most important thing was the symptoms. humming, couldn't turn it off. it was in some weird mode where it kept tring to start. dash light bright/dim, flashing dash lights... almost possessed.
I closed all the doors shut off what I could, waited a good minute , and tried again, after the batttery had a little rest. and it turned off (power, no brake).
finally it shut down. charged it with home charger for 40min (10amps), and it started... after a rest and charge....
If it were me to do again, I'd replace mine at 5 years. with a cheaper model... like a interstate I'd probably make a box out of cardboard and measure how big it can be....
YMMV.
I closed all the doors shut off what I could, waited a good minute , and tried again, after the batttery had a little rest. and it turned off (power, no brake).
finally it shut down. charged it with home charger for 40min (10amps), and it started... after a rest and charge....
If it were me to do again, I'd replace mine at 5 years. with a cheaper model... like a interstate I'd probably make a box out of cardboard and measure how big it can be....
YMMV.
#35
#36
theres room for a bigger batt. 450 cca is a joke.
amen!
#38
#39
#40
Lexus Test Driver
Is it possible to run an OBD scanner to check if the battery is still good? I'm using Torque, the Aux B Volt identifier always shows 14.5 V.
The small battery is used to run 12V electronics for the interior like the lights, locks and sound system. Once the voltage drops below a threshold, the big battery keeps it topped up.
The small battery is used to run 12V electronics for the interior like the lights, locks and sound system. Once the voltage drops below a threshold, the big battery keeps it topped up.
#41
Is it possible to run an OBD scanner to check if the battery is still good? I'm using Torque, the Aux B Volt identifier always shows 14.5 V.
The small battery is used to run 12V electronics for the interior like the lights, locks and sound system. Once the voltage drops below a threshold, the big battery keeps it topped up.
The small battery is used to run 12V electronics for the interior like the lights, locks and sound system. Once the voltage drops below a threshold, the big battery keeps it topped up.
#42
Batteries will fail even if new when the alternator is going bad. Our cars have the "Red Battery Indicator" on the dashboard that says the alternator is not charging at the right level. Means your alternator is dying and needs replacement. If you continue to run with this light on, it will take down the battery and you will get stranded.
#43
The 300h has no alternator and no starter. The battery is charged through the power in the main hybrid system. The engine is started by MG1 which is spun by the main hybrid battery. So the battery in the trunk does not see the extreme loads of a starter. What is important is the point made above that the battery is in the trunk and there is no ventilation I presume. This means that any fumes can come into the passenger compartment. It is important to also not have acid sloshing around like in a conventional battery in case one gets rear ended by a cell phone toting mama in a Suburban. That is why the battery is sealed and uses absorbent glass. Please do not replace with a conventional battery which is more appropriate for ventilated hood applications.
#44
Sorry for the screw up... on date..
I was in a rush to make a meeting when it failed, so I was googling the replacement battery group and hit this thread, and posted a little too quick, while searching for a quick replacement.
is this a AGM battery?
(why is the photo not attaching?)
I was in a rush to make a meeting when it failed, so I was googling the replacement battery group and hit this thread, and posted a little too quick, while searching for a quick replacement.
is this a AGM battery?
(why is the photo not attaching?)
#45
just noticed the vent on the back.... behind the NEG cable
also heres a online manual - fwiw
https://www.manualslib.com/manual/97...age=525#manual
-Do you think one of those small portable jump starters would be a good idea for a 5 year old battery? I'm thinking I'll get one if I still have the car in 4 years...
also heres a online manual - fwiw
https://www.manualslib.com/manual/97...age=525#manual
-Do you think one of those small portable jump starters would be a good idea for a 5 year old battery? I'm thinking I'll get one if I still have the car in 4 years...
Last edited by mrBillFL; 09-14-18 at 06:48 AM.