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As far I can see, none of listed batteries by Tanya is good for start and stop, the only matching parameter is size.
Jazz GK series wants one of the following EFB battery:

Yuasa YBX7053
Banner 55515
Napa AFB158N
Enduroline 048EFB

Maybe there are some other models fitting in the slot, I don't know, would be great adding them to this post.
Using a non EFB or AFB battery (AGM or standard lead-acid) will affect the battery lifespan.

Thanks for this really useful post, I'm also in need of a new battery. Can I just check with you if the above batteries are suitable for my car as well? We have a 2018 MK3 1.5L Sport. I'm not sure if the 1.5 Sport requires a different battery. Also, do you need to register or code the battery when replacing it or is it a straight swap as you do with a normal battery?

Thank you!
Honda Jazz Mk1 2002-2008 / Re: Cat removed. What is the sound?
« Last post by Jocko on September 23, 2023, 10:56:57 PM »
Removing the cat will make no difference to the sound but it will cause all sorts of problems with your engine running. The ECU depends on signals from the sensors mounted on the cat.
Honda Jazz Mk1 2002-2008 / Re: Key fob acted strangely
« Last post by c.lday44 on September 23, 2023, 10:36:18 PM »
Hi just a quicky. The other day I went to unlock the car and the key fob only half did the job, it started to operate the locking but not completely. I checked the battery and it still read 3.17 volts, but suspect it's that which is the fault. The other key fob works fine.

Have ordered a couple of Energiser ones from Amazon (not the 'cheapo' ones as they sometimes don't last long.

Can you tell me; is it just a case of just changing the battery, or do you have to do some kind of programming from the car?

Thanks in advance, Mike.

P.S the car's only done 70K now and found it to be very reliable.

I replaced the batteries in both of my keys just last week, also with Energizer batteries. One key was completely dead and the other may not have been far off. Both work perfectly now, no coding.
Honda Jazz Mk1 2002-2008 / Re: Oil! For someone very pedantic about Maintenance.
« Last post by c.lday44 on September 23, 2023, 10:35:06 PM »

I have a genuine Honda filter lined up and whilst I'm sure the blueprint filter is fine, I'm willing to splash a bit on genuine. Will I notice an impact on fuel economy with a slightly thicker oil?

Using Fuelly and comparing the results of 5 years using 0w-20 oil and 5 years of 5w-30, my average deteriorated by 0.5mpg . Given the wide range of travel over that time, conditions etc.. I would say miniscule.

Don't think I'll worry about mpg then haha
Honda Jazz Mk1 2002-2008 / Re: Cat removed. What is the sound?
« Last post by coldstart on September 23, 2023, 09:53:51 PM »
What sound does loosing the cars road permission make?
New Members / Re: Back in a Jazz after 2 years.
« Last post by coldstart on September 23, 2023, 09:50:50 PM »
Welcome back to the Jazz-family  :)
Honda Jazz Mk4 2020 - / Re: Undocumented but useful Mk4 HV battery charging feature?
« Last post by coldstart on September 23, 2023, 09:27:59 PM »
I don't know about doing away with the 12v battery but you would think they could recharge the 12v battery from the HV battery when the 12v battery charge dropped to a certain level automatically and a service notification to get it looked at, perhaps on the Mk5 Jazz. Why don't they fit a normal battery anyway?
I think that you are misunderstanding the general concept: The HV-battery gets completely disconnected from the system once the car is powered down *) (not the least for safety reasons!).
The 12V battery has absolutely nothing to do with cranking the ICE, so any "jump start" attempts to start the ICE are futile at best; you can only charge the 12V battery to a decent level so that it can serve its main purpose: start-up the power management system from the HV-battery. Furthermore it is here to allow for common 12V - read "cheap" - peripherals like radio, sat-nav, light-bulbs etc components.

*) which is exactly, why manually charging the HV-battery to the max before a months stand-still is such a bad idea.
Have you ever noticed that during normal operation the system never charges the battery to 10 bars (except on long down-hill cruises and we all know how "unwell" the system feels with all the excess charge), but tries to keep the charge level between 3 to 7 bars? (this is called "flat cycling" which is considered best for a Li-Ion battery).

You are however welcome to believe whatever you want and manually charge the HV-battery to the max (because Honda by default doesn't) - it is your money going down the drain for an early replacement not mine  ;D

Mind you: I'm all in for charging the 12V battery or even keep it branched to a good maintainig charger before or/and during a longer stand-still!
Honda Jazz Mk1 2002-2008 / Cat removed. What is the sound?
« Last post by masterross on September 23, 2023, 08:00:03 PM »

I'm considering removing the cat and replacing it with a resonator or just a tube.
Could anyone tell me what sound I should expect?

Honda Jazz Mk2 2008-2015 / Re: Air con starts working suddenly after 15 minutes
« Last post by Brakballe on September 23, 2023, 06:20:38 PM »

Where was that dang relay located again inside that box? One of three? Left or right one?

The air con compressor clutch relay is the one of these three in the engine bay, shown in the photo with the lid off.  The air con one is the one at the back on its own.  This has failed twice on my car, once stuck open, once stuck closed, and I suspect it temporarily stuck closed recently causing a low battery issue which made the car hard to start and threw up ABS and VSA warnings.  I have changed it just in case, and will do so annually from now on.

You mean that right one?  DANG that Honda Fit US guide that made me fool around aft the battery right side and found nada
New Members / Back in a Jazz after 2 years.
« Last post by jasonevans on September 23, 2023, 05:35:29 PM »
Finally back in a Jazz.. I've gone for a 2017 Mk3 SE Automatic this time. Previous Jazz was 1.4 MK1 manual.. They have defffo come on a bit. Loving it atm. Picked it up yesterday and after a nice  2 hr drive home at cruise control set at 70mph managed to get 67.9 mpg .. very impressive. Only 35 road tax as well. It's a win win. I'm a happy bunny.
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