Lithium ion batteries
I'm thinking of switching to Lithium-ion batteries on my trailer. I was warned that they could damage your vehicle's alternator because they suck a lot of power from it, more than lead acid batteries...
Forum Discussion
your charge line is fused, you will blow the fuse before you ever damage your alternator. the fuse is sized to protect the wire between the alternator and your 7 way plug so in theory the only thing that would happen if your wire was capable of supplying more power than it is rated for is the fuse should blow. if it doesn't, your not hurting anything as that is normally a 30 amp fuse (I have seen 40amp) and is engineered by the manufacture to be able to put out that much with out excessive strain on the alternator.
