哪种相机电池运行时最安静，适合隐蔽拍摄？

This genuine Sony NP-BX1 rechargeable lithium-ion battery has a 1240 mAh capacity and 3.6 V output. Its compact design suits owners of compatible Sony Cyber-shot, VLOGCAM, and Action Cam models who need a dependable replacement or spare battery.

This genuine Canon rechargeable lithium-ion battery provides 1040 mAh capacity and 7.2 V output. It suits photographers who need a reliable replacement or spare battery for compatible Canon cameras.

The Vello BG-S9 holds up to two Sony NP-FZ100-type batteries to extend shooting time. It adds portrait-orientation controls, custom buttons, a nonslip grip, and tripod mounting, making it suitable for Sony a9 III and a1 II photographers who need longer runtimes and improved vertical handling.

The Vello BG-C14 holds up to two LP-E6 or LP-E6N batteries, extending shooting time and providing dedicated vertical-position controls. Its non-slip surface, shutter release, multi-controller, and 1/4-20 tripod mount suit Canon EOS 5D Mark IV photographers who want longer sessions and improved portrait-orientation handling.

This genuine Canon rechargeable lithium-ion battery provides 875 mAh capacity at 7.2 VDC and can recharge in about 2 hours. It suits Canon EOS M-series and EOS Rebel SL1 users who need a compact replacement or spare battery for still photography and video recording.

The Vello BG-N22 is a dual-battery grip for compatible Nikon mirrorless cameras. It adds vertical shooting controls, a USB-C charging port for EN-EL15c and EN-EL15b batteries, and hot-swapping support for extended shooting sessions.

The Vello BG-C20 is a battery grip that accepts two LP-E6NH or LP-E6N batteries, extending camera battery life and shooting time. It adds vertical-shooting controls, battery-status LEDs, and in-camera battery charging, making it suitable for Canon mirrorless photographers who shoot portraits, events, or extended sessions.