Thread: Which Battery Tender/Charger
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Old 02-17-2012, 11:42 AM
bluetec bluetec is offline
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Quote:
Originally Posted by JimS X5d View Post
I have been using a Deltran battery tender for about 6 years with no issues. This is the same brand that BMW rebadges as their own.
There are now two battery chargers rebadged by BMW. One is the Deltran Battery Tender and the other is the CTEK 3300. AGM batteries require a higher charging voltage than lead-acid which the CTEK (and others) provide with an AGM mode. Battery Tender does not have this mode. The one I purchased is the 3.5 Amp, 8-step NOCO Genius g3500. It is excellent and I am very satisifed with it's performance. If you are looking to buy a charger, you may as well buy one with the AGM mode. The "why we have to use one" is the topic of numerous other threads, so I won't get into that here.
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