AGM Automotive Batteries and what one can learn on hold

Posted By on February 11, 2017

The BMW X5 35d has been having issues starting when cold which seems likely due to a new Exide FP-AGML5/49 Edge Group L-5/49 Flat Plate AGM battery. I’ve gone great lengths to rule out almost everything other than the battery, ExideAGMbreakdown8and decided it must be a weak cell or defect in the new battery itself. I installed a shunt to see if there was a mysterious drain zapping power when the SUV was sitting, used a load tester to determine if the battery had enough CCAs, yet there wasn’t anything definitive. I used a volt meter to check the resting battery voltage and charging alternator voltage and still was unsure.  Eventually I made the call, and with the help of a tech on the phone, decided it must be the battery.

So after calling the company, where I purchased this "higher end" AGM (absorbent glass mat) automotive battery, they authorized a replacement under Exide’s 48 month warranty if I would ship it back. Ugh!  Perhaps I could purchased a new battery and then use the shipping carton to return? Whew, good thing I asked since a replacement is out of stock with no ETA.  So now I wait and keep my jumper pack fully charged and handy.


Speaking of waiting, has some great on hold "talker." His chatter gave me all kinds of useless facts like "the average lead pencil has enough lead to write 50,000 words or a single line 34 miles long." Share that at your next social gathering … or better yet …"Racecar spelled backwards is still racecar."

Part Number  — FP-AGM L5/49
DescriptionExide Edge Flat-Plate AGM Battery
Exide Edge Flat-Plate AGM batteries are designed to maximize energy capacity for today’s on-the-go drivers. The Edge’s lasting energy protects against battery failure, helping vehicle batteries stay strong and perform like new longer. Exide Edge flat plate design contains six sets of plates, with glass mat separators, arranged in a straight line inside the battery, like sliced bread. SureLife Graphite Technology retains initial capacity longer for lasting energy capacity
Warranty48 Month Free Replacement Period
CCA 850
CA 1020
RC (25A)160
Ah Capacity (20hr)90
Volts 12
Group Size L5/49/H8
Terminal TypeA
Handle Yes
Length 13 – 7/8 in.
Width 6 – 7/8 in.
Height 7 – 1/2 in.
Weight 59.8 lbs.


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