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WANTED BATTERY
- Thread starter dbb7697
- Start date
Cheapest will likely be nEverStart at your local Walmart. The AGM is highly recommended, usually $179 plus tax/core.
If you want Made in USA, check out NAPA The Legend AGM. Usually around $210 or so but occasionally will go on sale 20% off.
Everything else you need to know is here:
If you want Made in USA, check out NAPA The Legend AGM. Usually around $210 or so but occasionally will go on sale 20% off.
Everything else you need to know is here:
You may also want to check your alternator. A bad alternator/worn voltage regulator
Don't discount your local MB dealer. Depending on their pricing structure, you might be able to get an OE battery for close to what the McParts/WallyWorld batteries go for. I've also heard that using the Roadside Assistance approach can get you the same without having to do the R&R, too, but that might not be the case depending on your status with the dealer and MBUSA.
Dan
It depends on the year of the W124. Early 124's with smaller alternators (70-80A) did often have outputs below 14v and these would not work well with AGM. Later 124's with larger alternators (90-120A) should have high enough voltage for the AGM's. Quite a few people have been using AGM's with the stock 400E/500E alternator and I've not heard of any reported charging issues.
Note that some high-end aftermarket AGM's, like Optima, may require even higher charge voltage (~14.8?) and these would likely cause problems, and also need a trickle charger/maintainer capable of the higher voltage as well.
According to WIS (15-5010) the alternator output voltage of 124.036/M119 should be 13,0-14,5V. So the top is almost there for any AGMs.
I have heard that here in cold area where it requires more from battery AGMs have had shorter lifetime compered to lead ones. The case might be different in south.
I have heard that here in cold area where it requires more from battery AGMs have had shorter lifetime compered to lead ones. The case might be different in south.
In Texas, it doesnt really matter much. The blasted heat renders many batteries of any brand and type useless after 30-36 months. We will see if my reman alternator and new AGM make that difference. In the recent past, the original alternator and brushes were shot - chicken or egg or battery....they all were FORD (Found On Road Dead)
