I have a 808 Magicshine light head and the Geoman Gear replacement battery, and recently purchased this set of lights to either compliment the Magicshine or to extend the battery life on the Magicshine. The new set is one of the Chinese copies that use cables that are almost the same as the Magicshine, and they all connect without problems except for the Magicshine light head and the new battery. Those connectors don't feel like they've completely connected, and the outer cover of the new battery seems to be just a little bit small for the Magicshine plug to make a connection that feels as tight as the others. I'd like to be able to go for a ride to see if this connection will fail while riding so I can return the new light if needed, but I don't think that ride is going to happen for a while. Has anyone had problems with connecting a newer clone battery to an older Magicshine head?