AW 2600 mAh Li-Ion. This is the best battery on the market. Ultrafire/trusfire = Turd-fire. Do not use them, they are junk.i have diving cree ssc p7 900 lumens.
there many options in protected one:
ultrafire
soshine
trusfire
there is mah and colurs(grey,red,blue...)
good value for money
reliable
known company
suitable Discharge Rate
thank you
Do you actually use a DX flashlight as a DIVING light? That's some major Darwin Award material! I'd say that batteries are your LEAST concern...i don't know if he as reverse polarity protection.
this is it:
Diving Cree SSC-P7-C-SXO 3-Mode 900-Lumen LED Flashlight Kit
http://www.dealextreme.com/details.dx/sku.29069
on more flashlight i will buy next week is
dbs v3 1s cree 2 wd
http://flashlightconnection.com/Der...D-Flashlight-neutral-cool-white-tint-p20.html
thank you