Replacing a battery - compatibility question.

grumbler

Nissan Note 2015 reg 1.5 diesel start-stop.

Original battery - EXIDED  Renault Nissan 12V - L2 EFB 60Ah 640A(EN) Enhanced Flooded Battery special technology 

approx 24x17x18cm

I want to replace it with   VARTA Silver Dynamic AGM  12V 60Ah, but for some reason  Amazon gives me a warning "This doesn't fit your Nissan Note MVP 1.5 DCI."

Varta's own battery finder says that it's OK, but I am not sure as it shows Blue Dynamic batteries as well that aren't EFB while I believe it has to be EFB and so said the RAC guy.  He also said that AGM is better than EFB.

Can I safely ignore Amazon's warning? Any opinions?

AdrianC

Going by the fitment from that Varta link, so long as they're all 027, they'll all physically fit. That tells you the physical dimensions and the terminal layout.

Stop-start puts heavier demands on a battery than a normal old-school lead-acid will cope with. EFB batteries are better than those, but AGM are better still - it's newer battery technology, and used universally for stop-start now.

The one possible is whether the battery management system in the car's software has an issue with it - but I'd be surprised.

neilmcl

I wouldn't fit an AGM battery instead of an EFB unless you have the ability to code the battery.

These are the batteries that should fit your vehicle - https://www.tayna.co.uk/car-batteries/types/027-efb/

Personally I'd go with the Yuasa YBX7027.

neilmcl

Also, you've probably searched on a different vehicle before and Amazon has remembered your choice. I've just searched against the Nissan Note 1.5DCi and it comes back as compatible.

getmore4less

I tend to use the owners forum for stuff where you can see what people that have the same vehicle say.
https://www.noteownersclub.co.uk

see what people say especially for problems sometimes it is not obvious, mine was a warm start problem == battery.

The best replacement on my car is a bit bigger and cheaper  than the OEM but does just fit in the cover.

neilmcl

getmore4less said:

I tend to use the owners forum for stuff where you can see what people that have the same vehicle say.
https://www.noteownersclub.co.uk

see what people say especially for problems sometimes it is not obvious, mine was a warm start problem == battery.

The best replacement on my car is a bit bigger and cheaper  than the OEM but does just fit in the cover.

But as mentioned, if you have a car with stop/start and therefore an AGM or EFB battery and you choose to go bigger in terms of power then you're not only have to register the battery but you will also have to get it coded to the battery management system which would probably wipe out any savings you've made buying a cheaper battery, particularly if you take it to a main dealer to fit.

Not registering/coding then you run the risk of the battery not only not being used to it's full capacity but also the start/stop system not working correctly among other things.

Jeepers_Creepers

https://batteryworld.varta-automotive.com/en-gb/efb-or-agm-which-battery-do-i-need

"If the vehicle is originally supplied with an EFB battery, an EFB battery can also be used as a replacement. If the car owner requires even greater performance or have a very demanding driving profile with a lot of urban traffic, a powerful AGM battery can be selected."

"Batteries with modern technologies such as EFB and AGM are monitored by a battery sensor and are closely linked with the battery management system (BMS). If a wrong battery is used, this can cause deficiencies in the automatic start-stop system, failures of comfort functions and reduced service life of the battery."

"An upgrade to an AGM battery is always advisable if a large number of electrical consumers cause an increased power demand or if maximum availability for use is required. One advantage of AGM batteries is the fuel saving which is achieved with the effective operation of the automatic start-stop system – and therefore saving money. All consumers in the onboard network benefit from a good power supply, even during stop phases and also operate reliably under unfavorable weather conditions."

Just when you think you understand summat, you find it ain't clear. It first says you can upgrade to an AGM from an EFB, then it says the batteries are monitored by the BMS and can cause deficiencies if the wrong battery is selected. Oh, and then it says an upgrade to AGM is recommended...

Lawdie.

neilmcl

Jeepers_Creepers said:

https://batteryworld.varta-automotive.com/en-gb/efb-or-agm-which-battery-do-i-need

"If the vehicle is originally supplied with an EFB battery, an EFB battery can also be used as a replacement. If the car owner requires even greater performance or have a very demanding driving profile with a lot of urban traffic, a powerful AGM battery can be selected."

"Batteries with modern technologies such as EFB and AGM are monitored by a battery sensor and are closely linked with the battery management system (BMS). If a wrong battery is used, this can cause deficiencies in the automatic start-stop system, failures of comfort functions and reduced service life of the battery."

"An upgrade to an AGM battery is always advisable if a large number of electrical consumers cause an increased power demand or if maximum availability for use is required. One advantage of AGM batteries is the fuel saving which is achieved with the effective operation of the automatic start-stop system – and therefore saving money. All consumers in the onboard network benefit from a good power supply, even during stop phases and also operate reliably under unfavorable weather conditions."

Just when you think you understand summat, you find it ain't clear. It first says you can upgrade to an AGM from an EFB, then it says the batteries are monitored by the BMS and can cause deficiencies if the wrong battery is selected. Oh, and then it says an upgrade to AGM is recommended...

Lawdie.

I think that first paragraph from the site is a typo, it clearly should've said ""If the vehicle is originally supplied with an EFB battery, an AGM battery can also be used as a replacement". The third paragraph linked does go on to clarify that a wrong battery would be a conventional car battery as opposed to a AGM/EFB type so it is pretty clear. Yes you can, and possibly should, upgrade from EFB to AGM but, as I mentioned, you should be expected to have the battery coded so that the BMS knows what type of battery it's dealing with.

Ditzy_Mitzy

Jeepers_Creepers said:

https://batteryworld.varta-automotive.com/en-gb/efb-or-agm-which-battery-do-i-need

"If the vehicle is originally supplied with an EFB battery, an EFB battery can also be used as a replacement. If the car owner requires even greater performance or have a very demanding driving profile with a lot of urban traffic, a powerful AGM battery can be selected."

"Batteries with modern technologies such as EFB and AGM are monitored by a battery sensor and are closely linked with the battery management system (BMS). If a wrong battery is used, this can cause deficiencies in the automatic start-stop system, failures of comfort functions and reduced service life of the battery."

"An upgrade to an AGM battery is always advisable if a large number of electrical consumers cause an increased power demand or if maximum availability for use is required. One advantage of AGM batteries is the fuel saving which is achieved with the effective operation of the automatic start-stop system – and therefore saving money. All consumers in the onboard network benefit from a good power supply, even during stop phases and also operate reliably under unfavorable weather conditions."

Just when you think you understand summat, you find it ain't clear. It first says you can upgrade to an AGM from an EFB, then it says the batteries are monitored by the BMS and can cause deficiencies if the wrong battery is selected. Oh, and then it says an upgrade to AGM is recommended...

Lawdie.

Hmmm....  That suggests replacing a modern whizzo battery with a normal one results in failure of the stop/start system.  Something for you to consider, @Jeepers_Creepers ?

AdrianC

Ditzy_Mitzy said:

Hmmm....  That suggests replacing a modern whizzo battery with a normal one results in failure of the stop/start system.  Something for you to consider, @Jeepers_Creepers ?

Stop-start puts a lot of load onto a battery, and a normal wet lead-acid won't cope very well.

But the suggestion is replacing a fairly whizzy, fairly modern EFB one with a whizzier, moderner AGM one.

Ditzy_Mitzy

AdrianC said:

Ditzy_Mitzy said:

Hmmm....  That suggests replacing a modern whizzo battery with a normal one results in failure of the stop/start system.  Something for you to consider, @Jeepers_Creepers ?

Stop-start puts a lot of load onto a battery, and a normal wet lead-acid won't cope very well.

But the suggestion is replacing a fairly whizzy, fairly modern EFB one with a whizzier, moderner AGM one.

That was my point.  Perhaps fitting a normal wet battery might fool the stop/start controller into thinking the battery is out of condition, thus disabling the feature permanently.  I understand that it doesn't work if the battery isn't right.