With 10 v charger with 6 v rechargeable batteries used at the same time, that is used when mains mains, there is no mains automatic conversion electric battery. Three light bead is in series or parallel good? Add how much resistance? Step-down to to the charger? If I want the dimmer, should how to do, had better have circuit diagram
What is your 6 v battery batteries? Small battery (battery)? 10 v charger to see what the battery charger, if the battery can work with, if nimh electricity or lithium electricity will reduce the voltage. How much is the pressure light bulb? It is best to parallel, serial word broke a are not lit up. Add how much resistance depends on what you use the lamp, or led. The dimming added potentiator current limiting. How to do is very simple, still with the figure? Charger and battery, lamps (and) series of potentiometer. If it is nickel metal hydride batteries can't do, for a long time will seriously affect the battery life in charging status. The more complex.
6 V battery should use free WeiHuXing 4 ah lead-acid batteries, the charging voltage should be 7.2 V ~ 7.5 V, and to have full automatic protection function. Can't use 10 v charger. Don't know what LED lights you choose? The working current? Positive pressure drop? These have a connection and choose the series resistance and the dimming.
If you are sure with 6 v battery power supply, then I suggest you use four leds, two series and then parallel, such high efficiency
