Thread: D4's charging / battery problem

Originally Posted by DiscoJeffster

Ferret, I’m with you. Post the CSV of the data. I’ve seen similar. Stupid car love to deplete the battery. It probably explains why these vehicles only get 3 odd years from a battery yet others get twice that on average. My Audi got 11 years out of its! It also explains why people endlessly tell you to put it on a charger monthly if you want the battery to survive. No other car I’ve owned needed this level of attention for its battery.

I'm pretty sure batteries are not built to last as long anymore.

Several Optima batteries across 3 trucks we've had in the past lasted longer in the same vehicle in the past. Indeed the last lot of blue tops were very dissapointing to the extent we complained about 5 of them only to be told @3 years was an acceptable lifespan. We don't buy them anymore.

Likewise we run a lot of machinery and previously had very good runs out of basic Exide/Century/Marshall N70 type batteries...but not so in recent years. I spoke with a major Aus battety supplier for 30 years who admitted that modern lead acid units he supplied did not last like the old ones....whatever that means. More or less get used to it I guess😐

Yes I do understand that modern vehicles draw more current etc etc....but why don't they last like my old man's batteries that gave 10 years even over the depth of UK winters?

Originally Posted by DiscoMick

Interesting discussion on this topic here:

D4 battery charging issues

Amazing, same old same old.

It amuses me how often the claim that a DC/DC will charge your batteries to 100%.

Yet not once have I ever seen any statement made indicating just how long it takes to charge a low battery to 100%