Hybrid 12v battery jumping - Page 2 - Toyota Nation Forum : Toyota Car and Truck Forums
Camry Hybrid Discussion area for the Toyota Camry Hybrid. Topics of discussion range from fuel economy, safety, modifications, performance all involving Americas favorite family car, the Toyota Camry.

 
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post #16 of 240 Old 04-22-2011, 07:16 PM
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Quote:
Originally Posted by Joe B View Post
You get two.You can always negotiate getting a third remote when buying.
The push button feature is on the gas Camry and other brands too.
So how do you like your loaded TCH?
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post #17 of 240 Old 04-22-2011, 07:29 PM
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Quote:
Originally Posted by Aptos Driver View Post
So how do you like your loaded TCH?
So far so good but only own it about 7 months.

'11 Camry Hybrid Classic Silver/Ash
Moonroof | NAV | Leather | JBL Audio | XM | Blue Tooth | OEM Remote Start | Michelin Primacy MXV4
'11 Honda CR-V EX-L w/NAV 4WD Glacier Blue/Gray
Leather | Remote Start | Fogs | Premium Sound | XM | Wood Dash | Michelin Primacy MXV4

Last edited by Joe B; 04-22-2011 at 07:34 PM.
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post #18 of 240 Old 04-22-2011, 08:06 PM
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Quote:
Originally Posted by Aptos Driver View Post
This is probably my biggest concern/fear as I consider whether to buy a TCH for my wife. She doesn't like the idea of push-button start to begin with. In fact, she's a technophobe who'd rather have a car with roll-down windows. That aside, I worry about her getting stranded in exactly this kind of situation. Also, she's lost car keys in the past and I worry about her losing her TCH fob. I understand that they're expensive to replace? How many do they give you with the car? Two? Three?

you should really benot concerned with push button. i have no idea why it became necessary but most modern cars have it.
problem described here is not relevant to push button. it is relevant to interference causing fobs not to be recognized by ECM. this may happen to anything that is electronic and operates remotely.

as of the key... anything can be lost. there's a "lost my only key" thread here, you can read it. "losers" will lose anything no matter what you do. like i said in the other thread, i have mine on a string around my neck and under my cloth. VERY hard to lose.



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post #19 of 240 Old 04-22-2011, 08:26 PM
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Originally Posted by ukrkoz View Post
"losers" will lose anything no matter what you do.
That's my wife.
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post #20 of 240 Old 04-23-2011, 03:33 PM
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Quote:
Originally Posted by Aptos Driver View Post
That's my wife.
Tell your wife to keep the key in her purse and leave it there. There's really no need to handle the fob for anything, even locking/unlocking the car

And this is coming from a fellow woman

6 speed manual 2011 Camry SE
1995 Mustang-1994 Mustang GT
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post #21 of 240 Old 10-19-2011, 01:28 PM
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Auxillary 12v battery charging procedure

Hi,

I want to charge my TCH 2008 aux 12v battery using external charger, I would like to know:
1) If I can connect the charger without taking of the battery ?
2) I heard if you take off the battery everything needs to be reset and programmed - smart key fob, TPMS, I do not want to get into this as I want to do it myself.

Can I use an AGM battery charger similar to Schumacher XCS15 directly with the battery installed in my car (without disconnecting) ?
I will ensure not to turn on the vehicle while it is charging.

Here is what happened:

I have 2008 Camry Hybrid (TCH), it was left for about 3 weeks with 15 minutes start every 6 days, but somehow, the aux battery still discharged.
When I came back everything was dead (reading on the multimeter showed 0.84v).

I followed the TCH manual and got the vehicle jump started,
1) Making sure voltage doesn't exceeds 14 volts while jump starting.
2) Removed the jumper cable.
3) Ran the vehicle for about 45 minutes and some 40 miles.
4) Measured the voltage in the morning and it is still at 11.48 V when in power off position.

It looks to me that I need to recharge the aux battery with an external charger to bring it to full charge, but since it powers all the computers, I do not want to disconnect and lose the settings.

Please suggest what is the right approach to charge the battery.
The charger has AGM mode with all the protections to save battery, is it safe to connect to the battery while battery is still connected to the car ?

Please help!
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post #22 of 240 Old 10-19-2011, 08:09 PM
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1. 12V battery has none to do with startting; it's auxiliary back up for electronics
2. it is a deep cycle battery. you can possibly choose to fork for a deep cycle charger.
3. no, you can charge it "in situ". without removing
4. i charged mine with a regular charger. it took FOREVER to do that though. those can take a lot of charge in. took me good day and a half to get to green light on charger.
5. smart folks hook up a small 12V back up battery, parallel to the main one, if they need to remove it for replacement or such.
6. in case yours is d-e-d, dead, best replacement is yellow top Optima from Sam's. best price around. does not have hydrogen vent provisions though , with tubes. has only evacuation plugs. you can attach tubes to them, if you want to, with some resin. your call. OEM deep cycle is much more expensive dealership item. shy of $300.
7. you can use regular battery instead, but I'd not recommend this. there's good reason they put deep cycle one in.
8. after fully charged, battery should show above 14V on voltmeter.
9. temp sensor you simply peel off and place onto a new battery. just in case. hope you can still charge it.




Last edited by ukrkoz; 10-19-2011 at 08:10 PM.
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post #23 of 240 Old 10-20-2011, 11:15 AM
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Charged the battery installed

Thanks ukrkoz,

I was able to get an AGM battery charger, it had 10A and 15A mode. I do not have a spare 12v battery pack, and didn't want to reset the TPMS / Computers and Smart Key fobs, so I charged with vehicle off and battery installed/connected.

I chose 10A to deep/slow charge the battery, it took about 7-8 hours to come to 100%, the voltage now reads at 12.85 V when engine is off and ACC is off, when engine is running it is 14.20 V.

I will continue to monitor the reading for next 3 weeks of usage to determine, if the battery is able to retain charge.

Will keep you posted, I used Schumacher XCS15 charger it has AGM mode and it has 10A / 15A mode as well.

If you use the regular slow charger, it will not charge, I heard 2A charge take forever at least 10A of current is need to charge AGM and < than 14 V. This charger maintained current at 12.80 volts, so I am hoping that my battery will not have been further damaged.

This was the first time it got drained, I am hoping this should get it back to work, will keep you guys posted on my battery revival .

Thanks !
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post #24 of 240 Old 10-20-2011, 02:53 PM
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you are welcome and glad it worked out.
I mentioned that there is no need to remove battery to charge it.
Well, cheap I am, my regular charger worked, only took a while. Now you have a charger that you will use once in 7 years.



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post #25 of 240 Old 10-20-2011, 03:30 PM
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12v battery charging

Yup, I didn't remove the battery, I wasn't sure if it should be charged when installed, that's why I confirmed here
Hmmm, may be not 7 years, but when I go on next vacation , you never know.

-Jas
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post #26 of 240 Old 06-02-2012, 11:15 AM
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I have a 2007 Camry Hybrid and have a couple of questions.

1. There's no jump terminal in the front of the car to hook up the charger to. Do I simply attach the charger directly to the battery terminals in the trunk? If so, should I leave the trunk open?

2. If I should keep the trunk open, would it be OK for the trunk light to come on or should I remove the bulb while charging the battery?

Jasusa: Has your battery been good since you recharged it? Mine is showing about 11V. While it currently works, I suspect it's on the way to getting completely discharged unless I charge it using a charger. My commute is 3.7 miles each way so I doubt the 12V battery is getting charged for an adequate period by the car.

Thanks.
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post #27 of 240 Old 06-02-2012, 12:05 PM
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google "TSB PD020-06", it's a TSB on how to charge the battery. There's a section on how to charge it without using a trickle charger (assuming it's not completely dead) Note that it's the Hybrid Battery that does the charging to the 12v and not the ICE . Charging time also varies with the SOC of the aux battery.

3. If the Automatic Battery Trickle Charger is NOT available, you may charge the 12-volt
battery by turning the vehicle on to “READY.”
�� Ensure there is a sufficient amount of fuel for vehicle during this run time.
Run time will vary depending on the state of charge.
�� If this method is used, you MUST confirm that the battery is charged to 12.8 volts
using a DVOM.

It's up to you to charge it mounted in the car but for safety reasons they recommend taking it out.

CAUTION:
�� Do NOT charge with the battery
mounted in the vehicle.
�� Charge in a well-ventilated area.
�� Do NOT allow sparks or fire near
the battery.

------------------------------------------------------------------------------------
My 2007 Camry Hybrid DIY
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post #28 of 240 Old 06-02-2012, 10:01 PM
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well, it's contradictory statement.
if you let ICE run to charge hybrid battery to charge 12V battery - it means, 12V battery IS in the car.



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post #29 of 240 Old 06-03-2012, 02:43 PM
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Quote:
Originally Posted by srivenkat View Post
I have a 2007 Camry Hybrid and have a couple of questions.

1. There's no jump terminal in the front of the car to hook up the charger to. Do I simply attach the charger directly to the battery terminals in the trunk? If so, should I leave the trunk open?

2. If I should keep the trunk open, would it be OK for the trunk light to come on or should I remove the bulb while charging the battery?

Jasusa: Has your battery been good since you recharged it? Mine is showing about 11V. While it currently works, I suspect it's on the way to getting completely discharged unless I charge it using a charger. My commute is 3.7 miles each way so I doubt the 12V battery is getting charged for an adequate period by the car.

Thanks.
You can charge it with the trunk open. The light will put a little extra load, but should be minor. Maximum charging rate according to Toyota is 5 amps. Here is a quote from the 2012 Specifications in the Owners Manual, that may be of some help:

12.6 - 12.8 V Fully charged
12.2 - 12.4 V Half charged
11.8 - 12.0 V Discharged
(*: Voltage checked 20 minutes after the engine and all the lights are turned off, at 68 deg. F)

If you fully charge it and get it back to specifications. You may want to buy a small automatic trickle charger of 1-2 amps capacity. And plug it in overnight once a week or so. Automotive places should have them. They are intended to be left on the battery for long periods of time without damaging it.

Last edited by Ron AKA; 06-03-2012 at 02:45 PM.
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post #30 of 240 Old 07-15-2012, 12:23 PM
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How to jump start dead 12V battery

How to jump start dead 12V battery
Of course, it's for Prius, what else, but should be applicable to Camry:




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