2003-4x4runner
New member
Well, its still cold here in Nor Cal, colder then normal so I thought it would be best to replace the battery. It would have been great to see how long the battery would have lasted.
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2004 4Runner still on OEM Panasonic battery
- Thread starter Jed
- Start date
Well, its still cold here in Nor Cal, colder then normal so I thought it would be best to replace the battery. It would have been great to see how long the battery would have lasted.
offshorebear
New member
Sadly today I said goodbye to my stock Panasonic battery.
I replaced it with a Duralast Gold. It starts much more forcibly now.
I replaced it with a Duralast Gold. It starts much more forcibly now.
Only if the battery's capacity is severely diminished. In that case, it may make the alternator work "overtime" in a situation when the electrical load is very high (maybe driving in the rain with your hi-beams on and the fan on full speed/defrost, for example). But in reality, I'd say not really in most cases.
peter78
Super Moderator
Well, my 12 volt Panasonic battery is doing fine on my 2004, but today I had to replace the Panasonic 3 volt battery in my keyless remote. It cost me $2.99. I can't live without my keyless remote, what did we ever do without one?:jump:Mine passed away last month
2004 84k..bummed
RVFIXERGUY
New member
Just got a 2004 T4R. I had never seen a Panasonic battery until now. 98k and I was thinking I should change battery since I see it is original. I looked for a date stamp code buy could not find one. I'll go with INTERSTATE when the Panasonic dies. Hope it takes a few years more. Ill have jumper cables just in case.
Most of the electrical power required by the vehicle when running is provided from the alternator, not the battery.
ALLEGRO
New member
Most batteries will die during the warm months due to heat sinc. No doubt that the Pan is a good battery, but like all others, it will too die at some point.
If you don't drive at least once a week I would suggest installing a battery-maintainer. I am still on the OE battery in my 2003 Corvette. Battery maintainers are cheap and well worth your money.
My 1997 ski boat is only on its 4th battery, which might sound un-impressive, but in a marine environment, that is quite outstanding.
Good luck
If you don't drive at least once a week I would suggest installing a battery-maintainer. I am still on the OE battery in my 2003 Corvette. Battery maintainers are cheap and well worth your money.
My 1997 ski boat is only on its 4th battery, which might sound un-impressive, but in a marine environment, that is quite outstanding.
Good luck
All the batteries that I have ever replaced happened during cold weather periods.
Cold weather will wear down a battery, which is why people who live in cold weather areas have battery warmers.
http://www.padheaters.com/battery_heater.html
Cold weather will wear down a battery, which is why people who live in cold weather areas have battery warmers.
http://www.padheaters.com/battery_heater.html
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I don't think even the 5th gen have Panas anymore.
Yes, my 5th Gen has a Panasonic battery. mine is a 2010, not sure about the 2011's.
a lot of chickens here.
'03 V8 w/ over 181k miles and still have mine. i have to see how long it lasts now.I realize that. Run your vehicle with a battery that will not hold a charge and tell me how long your alternator lasts. Trust me, it will tax the alternator in a big way. So if you have a weak battery, the alternator does work harder than it would otherwise.
A weak battery that can't hold a charge won't even start the vehicle.
2003-4x4runner
New member
Tesla teams with Panasonic
Panasonic will now be making batteries for Tesla Motors. I live pretty close by the Tesla factory (old NUMMI Toyota plant) I was thinking about stopping by to see if they can sell me a Panasonic Battery! :hungry:
Tesla Teams with Panasonic to Boost Electric Car Battery Life - Business News - Energy Digital
Panasonic will now be making batteries for Tesla Motors. I live pretty close by the Tesla factory (old NUMMI Toyota plant) I was thinking about stopping by to see if they can sell me a Panasonic Battery! :hungry:
Tesla Teams with Panasonic to Boost Electric Car Battery Life - Business News - Energy Digital
BlackWorksInc
New member
Both of you are right actually;
DoCMT is correct your alternator normally provides all the required power to operate the vehicle AFTER it has been started. The battery is mainly for starting the vehicle as this will draw the most amperage out of any operation of the vehicle. BUT, the second thing an alternator does is recharge the battery's lost charge when the vehicle is cranked over.
The key idea there is that an Alternator and the Regular Auto Battery are not designed to Deep Cycle...
Deep Cycling is drawing a battery to a low charge level, (in the case of automotive batteries is it is below 9.5volts it is often considered a "dead battery") and the charging it back to a full charge status repeatedly.
As a rough rule of thumb it takes roughly an hour worth of driving to recharge the battery the amount you drained from cranking it over. Now imagine your alternator trying to keep your car running AND recharging a dead battery, it literally burns itself out. The alternator is not designed to hand that much of a load, its meant for essentially operating the vehicle and topping its battery off not recharging it from zero.DCDude is also right, pretty much any dead/weak battery will not usually start a car, though that is why people get jump starts.
Sorry if its written rather jittery like, trying to keep it concise without going into how the battery operates as well as the charging and starting systems in too much depth. (Though I guess if you'd like I could knock it out if people really want to know? :shrug
2004 Runner V-8 Sport
Went to the dealer for oil/filter change and they told me we TESTED your (7 year old +) OEM Panasonic Battery rated at 710 CCA and its only pushiing 523 CCA ( 60%) and could go anytime.
Mind you this is the same dealer who told me I should replace my Indium spark plugs with only 52K. I called the parts dept. same dealer asking about plug cost and they told me save your money and come back at 120K.
Went to the dealer for oil/filter change and they told me we TESTED your (7 year old +) OEM Panasonic Battery rated at 710 CCA and its only pushiing 523 CCA ( 60%) and could go anytime.
Mind you this is the same dealer who told me I should replace my Indium spark plugs with only 52K. I called the parts dept. same dealer asking about plug cost and they told me save your money and come back at 120K.
2004 Runner V-8 Sport
Went to the dealer for oil/filter change and they told me we TESTED your (7 year old +) OEM Panasonic Battery rated at 710 CCA and its only pushiing 523 CCA ( 60%) and could go anytime.
Mind you this is the same dealer who told me I should replace my Indium spark plugs with only 52K. I called the parts dept. same dealer asking about plug cost and they told me save your money and come back at 120K.:hunter:
Went to the dealer for oil/filter change and they told me we TESTED your (7 year old +) OEM Panasonic Battery rated at 710 CCA and its only pushiing 523 CCA ( 60%) and could go anytime.
Mind you this is the same dealer who told me I should replace my Indium spark plugs with only 52K. I called the parts dept. same dealer asking about plug cost and they told me save your money and come back at 120K.:hunter:
By the way - not all Panasonic batteries are created equal - you should see some of the noise on the Hylander Hybrid forums - made in Japan also but it supposedly has an undersized battery which has left a fair few stranded. So it's more a question of great battery right sized for the truck.
