I just received the new charger. Tested its voltage and polarity. I think it read 54.8v. And I tested it on my near full battery (with my spare charger, it stops charging at 53.4v). I left the house on 54.1v (only because I didn't want to wait for a full charge)
And I noticed that the charging connection seems a lot more solid than with my spare charger. I was able move, swivel and twist the lead (on the battery end) without interruption. I'll check that again next chance I get but I think it might the connector on the spare charger. I've only noticed it using the spare. I also noticed that the spare charger has a slightly loose fit. It seems to slide out quite easilty.
And lastly, my battery hasn't had any issues with the connection dropping out since my last change of connectors. I think that the bullet connectors I was using were a bit flakey. I have spade connectors now and th there has been no re-occurance since then.