The Nikon EN-EL9a Rechargeable Lithium-Ion Battery from Lightbulb Rentals provides 7.2v and can store 1080mAh of power, which translates into over 200 shots on a charge. The battery is compatible with the Nikon D5000, D3000, D40, and D60 SLR Digital Cameras.
Sony XDCA-FX9 V-Mount Extension Unit$150/day
Canon LC-E6 Battery Charger$5/day
Sony FS7: V-mount Extension Unit$100/day
Sony NP-FZ100 Dummy Battery (Z-Series) to AC Adapter$8/day
Tilta Nucleus M BRC 18650 Battery$3/day
Sony NP-FW50 Battery (W-Series)$6/day
Sony NP-FZ100 Dummy Battery (Z-Series) to D-Tap$10/day
Dual Charger: Core SWX GPM-X2A Mini Travel, Gold Mount$15/day