6v NiMh battery for planes yachts cars boats. (1)
Comes with JST plug as shown.
If you wanted to use it to power a receiver you can swap the plug and use the end of a servo lead for the fitting. Or I have JST tails.
These come stamped and rated 3500 mAh I have sold many of these batteries with good feedback but the 3,500 may be optimistic.
If your particular needs demand a true 3,500 mAh then I suggest spending more money on Sanyo, Samsung, Panasonic etc. NiMh batteries.
Never had complaints with these. Just sayin.