I use one tender as Rack posted and put it on 4 bikes during the course of the year. If a battery becomes week because the bike has been sitting for a long time it gets the tender for a week even if the light turns green in a day. I don't feel the need to have more than 1 tender even though 4 bikes have pig tails to hook up to it.



... the local Pep Boys had 3 to choose from ... an AUTO Tender by Battery Tender ($40), the original Tender (what I got) and Bosch came out with one that's around the same price as mine....other that I don't know. And we're talking BT's not chargers/tricklers....
