Battery runtime calculator

Pick a battery and the camera, monitor, lights and wireless gear it has to power, and the calculator adds up the draw and estimates how long the battery lasts. Power figures come from GEARMATH item specs and official manufacturer documentation. Runtime assumes 85% of the rated watt-hours are usable, to allow for cold, battery age and regulator losses.

Camera power draw (manufacturer figures)

CameraWattsConditionsRuntime on 99 WhRuntime on 150 WhSource
ARRI ALEXA 3590 W~90 W (camera body and MVF-2)0:561:25source
ARRI ALEXA Mini LF65 Waround 65 W recording ARRIRAW 24 fps with MVF-21:181:58source
Sony FX618 WApprox. 18.0 W (XAVC-I QFHD 59.94p, SEL24105G, viewfinder on)4:417:05source
Sony PXW-FX935.2 WApprox. 35.2 W (XAVC-I QFHD 59.94p, SELP28135G, viewfinder on)2:233:37source
Sony BURANO50 WApprox. 50.0 W nominal (66.0 W maximum)1:412:33source
Sony VENICE 276 WApprox. 76 W with 8.6K sensor (73 W with 6K sensor), X-OCN XT, 24 fps1:061:41source
Sony CineAlta F5525 WApprox. 25 W (XAVC 4K 60p, EVF and LCD off)3:225:06source
Sony CineAlta F6565 WApprox. 65 W (mechanical shutter operating, without lens or viewfinder)1:181:58source
Sony PMW-F524 WApprox. 24 W (XAVC HD 60p, EVF and LCD off)3:305:19source
Sony PXW-Z19036 WApprox. 36 W (LCD and EVF on, external device connector used)2:203:33source
Sony PXW-Z28036 WApprox. 36 W (LCD and EVF on, external device connector used)2:203:33source
Sony PXW-Z75041 WApprox. 41 W (XAVC recording, LCD on)2:033:07source
Panasonic VariCam 3569 W69 W body only (99 W with all accessories)1:131:51source
Panasonic VariCam LT47 W47 W body only (77 W with all accessories)1:472:43source
RED KOMODO-X28 W28 W basic recording at 6K 24 fps (45 W with RED Touch 7in at 6K 80 fps)3:004:33source

Battery capacities in Gearmath

BatteryWhMountMax current
Core SWX SNAP Mighty USB-C PD45SNAP Stacking6.5 A
Anton Bauer Titon Micro 45 Gold Mount47Gold Mount8 A
Core SWX PowerBase Edge Lite47Other8 A
Core SWX Nano Micro 50Wh49V-Mount–
Core SWX PowerBase Edge Snap49Other6.5 A
FXLION Nano One50V-Mount8 A
FXLION Nano One Wireless50Other8 A
PAG MPL50 Mini PAGlink50V-Mount8 A
SmallRig VB50 mini V-Mount Battery50Other–
SWIT OMNI-50S 50Wh Pocket V-Mount Battery50V-Mount–
Anton Bauer Titon Base68Other8 A
Core SWX PowerBase Edge Link70Other8 A
SWIT MINO-S70 70Wh Pocket V-Mount Battery70V-Mount–
Lume Cube Power Grip XL74.5Other–
bebob V90RMcine86Vcine20 A
PAG L90 Slim90V-Mount10 A
Anton Bauer Titon 90 Gold Mount92Gold Mount10 A
Anton Bauer Titon 90 V-Mount92V-Mount10 A
SWIT S-8192S 92+92Wh Dividable V-Mount Battery92V-Mount8 A
Anton Bauer Titon Micro 90 V-Mount94V-Mount10 A
bebob V9895V-Mount8 A
BLUESHAPE BV090two95Other7 A
BLUESHAPE BV095HDmini95V-Mount–
IDX CUE-J9895V-Mount–
Rotolight 95 Wh V-Mount IP64 Battery95V-Mount–
Deity Microphones S-95 Smart Battery95.04Other4.83 A
BLUESHAPE BV100HDplus96Other20 A
IDX DUO-C9896V-Mount10.5 A
Core SWX Hypercore NEO 9 Mini98V-Mount12 A
Core SWX NANO X Micro 98Wh98V-Mount–
Core SWX NANO-C98X 98Wh BP-A Style Battery98Other–
Core SWX NANO-U98X 98Wh BP-U Style Battery98Other–
Core SWX PowerBase Edge Snap Xtreme98SNAP Stacking10 A
FXLION Nano Two98V-Mount10 A
FXLION Nano Two Wireless98Other10 A
Hawk-Woods BL-98 B-Lok98B-Mount–
Hawk-Woods VL-M98D Mini V-Lok98V-Mount–
IndiPRO Tools Micro Series 98Wh V-Mount98V-Mount12 A
SWIT BIVO-98 98Wh B-Mount Battery98B-Mount–
SWIT CIMO-98S 98Wh Slim V-Mount Battery98V-Mount–
SWIT PB-M98S 98Wh Pocket V-Mount Battery98V-Mount12 A
SWIT PB-S98A 98Wh Square Gold Mount Battery98Gold Mount12 A
V-Mount Battery (98Wh)98V-Mount–
SmallRig VB99 Pro mini V-Mount Battery98.872Other–
Anton Bauer Dionic 26V 98Wh B-Mount99B-Mount12 A
Anton Bauer Dionic XT 9099Gold Mount10 A
BLUESHAPE BV10099Other20 A
CAME-TV Mini 99C V-Mount Battery99V-Mount–
Core SWX Helix Max Ultra 9999B-Mount–
Core SWX HyperCore G3 9999V-Mount–
Core SWX NANO X SNAP 99Wh99V-Mount–
Core SWX XCell 99Wh V-Mount99V-Mount–
PAG MPL99 Cinergy99V-Mount12 A
PAG MPL99 Mini PAGlink99V-Mount10 A
SmallRig VB99 mini V-Mount Battery99Other–
SmallRig VB99 SE mini V-Mount Battery99Other–
SWIT OMNI-99S 99Wh Pocket V-Mount Battery99V-Mount–
ZGCINE ZG-V99Pro V-Mount Battery99Other–
ZGCINE ZG-X99 V-Mount Battery99Other–
ZGCINE ZG-H110 Battery Grip110Other–
Anton Bauer Titon Micro 150 V-Mount140V-Mount10 A
SWIT MINO-S140 140Wh Pocket V-Mount Battery140V-Mount–
bebob V150143V-Mount16 A
bebob V150microC143V-Mount16 A
BLUESHAPE BV140HDmini143Other12 A
IDX CUE-J150143V-Mount13.9 A
IDX DUO-C150143V-Mount–
IDX IPL-150143V-Mount–
Anton Bauer Titon 150 Gold Mount144Gold Mount10 A
Anton Bauer Titon 150 V-Mount144V-Mount10 A
BLUESHAPE BV145145Other20 A
SWIT PB-M146S 146Wh Pocket V-Mount Battery146V-Mount–
SWIT PB-S146A 146Wh Square Gold Mount Battery146Gold Mount16 A
Core SWX XCell 150Wh V-Mount148V-Mount–
Rotolight 148 Wh V-Mount IP64 Battery148V-Mount–
SmallRig VB155 mini V-Mount Battery148.308Other–
ARRI B-Mount Battery (150Wh)150B-Mount12 A
Core SWX NANO X Micro 150Wh150V-Mount–
FXLION Nano Three150V-Mount10 A
Hawk-Woods BL-150 B-Lok150B-Mount–
Hawk-Woods VL-M150D Mini V-Lok150V-Mount–
IndiPRO Tools Kratos 150Wh V-Mount150V-Mount–
IndiPRO Tools Micro Series 150Wh V-Mount150V-Mount12 A
PAG MPL150 Mini PAGlink150V-Mount10 A
V-Mount Battery (150Wh)150V-Mount–
ZGCINE ZG-S150 V-Mount Battery150Other–
Anton Bauer Dionic XT 150156Gold Mount10 A
bebob V155RMcine156Vcine20 A
ZGCINE ZG-X160 V-Mount Battery156Other–
Core SWX Helix Max Ultra 160158B-Mount–
Core SWX HyperCore G3 150158V-Mount–
SWIT BIVO-160 160Wh B-Mount Battery160B-Mount–
SWIT CIMO-160S 160Wh V-Mount Battery160V-Mount–
SWIT PB-R160S+ 160Wh IP54 V-Mount Battery160V-Mount6 A
SWIT S-8113A 160Wh Gold Mount Battery160Gold Mount16 A
BLUESHAPE BV180two180Other9 A
bebob V200190V-Mount16 A
BLUESHAPE BV190HDtwo SPLASH190Other12 A
IDX CUE-J198190V-Mount13.9 A
IDX DUO-C198191V-Mount14 A
BLUESHAPE BV190HDplus193Other20 A
SWIT BIVO-200 196Wh B-Mount Battery196B-Mount–
SWIT CIMO-200S 196Wh V-Mount Battery196V-Mount–
ZGCINE ZG-S200 V-Mount Battery200Other–
SWIT MINO-S210 210Wh Pocket V-Mount Battery210V-Mount–
SmallRig VB212 mini V-Mount Battery212.544Other–
SWIT PB-R220S+ 220Wh IP54 V-Mount Battery220V-Mount6 A
SWIT PB-S220A 220Wh Square Gold Mount Battery220Gold Mount16 A
ZGCINE ZG-X222 V-Mount Battery222Other–
Anton Bauer Titon 240 Gold Mount238Gold Mount10 A
Anton Bauer Titon 240 V-Mount238V-Mount10 A
Anton Bauer Dionic 26V 240Wh B-Mount250B-Mount12 A
BLUESHAPE BV270HDtwo SPLASH266Other12 A
bebob V290RMcine285Vcine20 A
IDX CUE-J300289V-Mount14 A
BLUESHAPE BV290290Other20 A
SWIT BIVO-290 290Wh B-Mount Battery290B-Mount–
SWIT CIMO-290S 290Wh V-Mount Battery290V-Mount–
SWIT HB-A290B 290Wh 28.8V B-Mount Battery290B-Mount3 A
SWIT PB-H290S290V-Mount–
SWIT PB-R290S+ 290Wh IP54 V-Mount Battery290V-Mount6 A
Core SWX Helix Max Ultra 300297B-Mount–
Rotolight 300 Wh V-Mount Battery300V-Mount–
Core SWX Apex 360 HV367V-Mount–
Core SWX Apex 360 LV367V-Mount–
Core SWX Helix Max 360367B-Mount–
Core SWX Helix Max Ultra 400395B-Mount–
SWIT HB-C420S 420Wh High-Load V-Mount Battery420V-Mount–
SWIT PB-C420S 420Wh V-Mount Battery420V-Mount–
BLUESHAPE BV435 Granite Smart435V-Mount20 A
Block Battery (24V)480Other–
Anton Bauer VCLX NM2600Other–
Core SWX Maverick605Other40 A
Core SWX Renegade777Other20 A
Core SWX Renegade XL1376Other12 A
Anton Bauer Eden 2.5kWh2500Other–

How the maths works

runtime (h) = battery Wh × quantity × 0.85 ÷ total load W

Batteries are assumed to run one after another, so the watt-hours of several packs are added together. The 0.85 factor accounts for capacity lost to cold, ageing cells and voltage regulation. Real runtime varies with camera settings, recording format and temperature.

Current is estimated as total load W ÷ nominal voltage: 14.4 V for V-Mount, Gold Mount and other mounts, 26 V for B-Mount. Where a battery lists a rated maximum current, the calculator warns when the estimate exceeds it.

99 Wh is the usual airline limit for carrying a lithium-ion battery in cabin baggage without approval. Larger packs generally need airline approval; check your airline's rules before flying.