I have a mfh-dgw 2.1 trail cam and i need to know what kind battery it takes my son lost it

SOURCE: printable users manual

http://images.ebsco.com/pob/moultrie/catalog/GameSpy100V2Manual.pdf

SOURCE: moultrie MFH-DGW 2.1

i need the operating directions for theMFH-DGW 2.1.

SOURCE: Request for Operator's Manual

All the Moultrie camera manuals available via PDF =>

http://www.moultriefeeders.com/ProductInstructions/GameCameras/default.htm

If not listed, try calling them (800) 653-3334 or (205) 664-6700 Monday through Friday 8am to 5pm Central Standard time.

SOURCE: Where can I find parts for a Moultrie Camera

Depends on the parts...An operator (user) manual can be download/printed (PDF) from www.moultriefeeders.com

SOURCE: Moultrie camera mfh-dgw 2.1 reads BATTERY LOW but

1st, unless you have a solar panel on this cam, stay away from rechargeable batteries.When new they will be @100+%, but have to be virtually drained to get to charge back, and then will only charge to about 80%.A solar charger will keep them @ above 80%.
Now, to solve your prob;I have found dirty/corroded contacts;evidence of dampness/corrosion @battery connections to main board; and fireants...they are attracted to electrical and will electricute themselves causing open connections...just a few solutions to ck out.