How do I insert the drill bits in a Ryobi 18V drill-driver model #P209

SOURCE: inserting new drill bit

Assuming that it is this drill:

http://www.toolpartsdirect.com/cgi-bin/schematic.cgi/blackdecker/7144-04_TYPE_4

You will need a chuck key - hopefully you have that with the drill. It's a little t-shaped bar with a cog on one end. You put it into the holes in the chuck (the part at the end which grps the bit) and turn anti-clockwise to open the jaws. Place a bit in the centre and then turn it clockwise to tighten. Tighten the bit using each of the three holes in the chuck and make sure you remove the chuck key before you use the drill - keep it safe!

SOURCE: Ryobi impact drill compatibility with normal drill bits

Round bits are not compatible with the Ryobi impact drivers. You need the hex shank "quick connect" bits and accessories. There is an adapter available. it is basically a regular style of keyless drill chuck with the quick connect hex shank that should fit right in to your Impact.

SOURCE: Black and Decker KD950K drill - how to insert drill bit

most keyless chucks have a button on top that you push in near the chuck it locks so you can tighten or undo

SOURCE: light on ryobi 18v charger

More than likely a defective battery sinse the other ones charge fine..
Bring it back for exchange of another one..

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SOURCE: need battery charger for robust 18v drill/driver.

need battery charger for robust 18v drill/driver. charger model 9706

I have exactly the same charger with the battery .
my drill is fallen , and it is broken .