Quote:
Originally Posted by SpaceSilverX1
I got one of those Battery Tender Junior chargers connected to a Mercedes in the garage. It's only driven every couple of months. The devices keeps the 100-amp battery inside the trunk happily topped up all the time.
With the new BMW X1 that I just got, can I use the same Battery Tender as well? BMW does sell their own battery charger/maintainer for $150 at the dealer's parts dept. Is it better to use that instead?
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Probably. I have that BMW charger and also an older 4 amp CTek charger. The BMW, Porsche and Merc branded chargers are all made by CTek.
If you have an M car with a Li-Ion battery then the official BMW charger is probably a wise purchase. Otherwise any CTek or NOCO "smart" charger with a similar specification will do, especially if it is just for trickle/maintenance charging.