What's the biggest battery you can fit in a Gen.4?

The Yuasa HSB053 (also known as the 5053 and 5057) has been the standard battery upgrade for the gen 3 for years. Can't say I've noticed any difference from using the higher capacity batteries myself, other than the obvious contrast when going from an old, tired battery to a new one.

CCA and AH are both used as they measure different things. In your situation of the battery losing charge over time you don't need more CCA, you need more AH. Obviously one often comes with the other, but not always. e.g. lithium batteries. But more importantly if you are having to re-charge the battery of any car that is in regular use then you have either a faulty battery or something is draining the battery while the car is off.

wrote:

The Yuasa HSB053 (also known as the 5053 and 5057) has been the standard battery upgrade for the gen 3 for years. Can't say I've noticed any difference from using the higher capacity batteries myself, other than the obvious contrast when going from an old, tired battery to a new one.

CCA and AH are both used as they measure different things. In your situation of the battery losing charge over time you don't need more CCA, you need more AH. Obviously one often comes with the other, but not always. e.g. lithium batteries. But more importantly if you are having to re-charge the battery of any car that is in regular use then you have either a faulty battery or something is draining the battery while the car is off.

Martin Lines has provided an info. video concerning charging the battery on a Gen.4. It may be of interest to you.

Roger

Some more info. The battery fitted to the Audi is a Varta 7P0 915 105. This gives 70A/H and 760 CCA. It is 278mm long x 175mm wide x 190mm high and yes, I reckon that it could be fitted but you will need to fabricate a new tray, fit T3 to T1 terminal adaptors and make a new clamp down.. Cables will fit and don't need modifying as you will still be needing the same current for the starter motor.
Do I need it? no, so why the info. Well there are people with fridges and winches and camping lights etc who might find the info of interest.
If you want more power but want to stay the same size then the Yuasa will fit the bill (and the battery tray) as it has the same physical sizes the terminals are T3 and correctly orientated. Power is 50 A/H with 450CCA. Model no. HSB 053..This will be my choice
In between there are the Yuasa YBX 5012 and the YBX 5063 but both suffer from the same problem as the Varta. they are 175mm wide which is 46 mm more than standard.

Hope this helps.

Roger

I am frustrated with the battery for Gen4 Jimny . I had no issues with the older cars resting in the garage for 2 weeks. But this Jimny can't take a 9 days rest at all. Would changing to a powerful battery help ? I am tired of changing batteries. It is going to be my 3rd time this year and the cost is rather high.
 

I'm confused, your battery keeps going flat and you are buying a new one each time? You need a battery charger that you plug in the wall. CTek and noco are good places to start looking, you don't even have to remove the battery from the car with some models.

A fully charged battery should easily exceed 2 weeks unless something is drawing excessive current. Assuming its not current draw then this points to the battery not being fully charged during your normal use.
​​Repeated very short journeys with all lights on etc can lead to this situation, at this point you need a plug in charger as Lambert indicates. Martin's done a video on using a ctech to keep a G4 battery topped up.


Now I've said this didn't someone on here have issues keeping a G4 battery topped up during normal use a year back, resulting in trips to the dealer? Not sure what the outcome was or if it was an issue with the smart alternator, but something issimilar. Anyone recall?
Update - just watched video, it's technology getting in the way possibly preventing your battery being charged. Remember it's an improvement as you sit with a flat battery.