I did have a backup camera which used the same Sony NP-FW50 battery. Could I use the backup camera as an improvised battery charger?
K&F Concept 1100mAh NP-FW50 Battery with Type-C Fast Charging for Sony ZV-E10, Alpha 7, A7, A7II, A7RII, A7SII, A7S, A7S2, A7R, A7R2, A5000, A6400, A6500, A6300, A6000, NEX-3, NEX-5, 2 Pack
☆INTELLIGENT DETECTION: Read the real capacity of batteries charged from 0 up to 100%. Automatically adapts to USB input power and detects battery
NP-FW50 Dual Slot Battery Charger for Sony NP FW50 Batteries for Sony Alpha A6400, A6000, A6300, A6500, A5100, A7, A7II, A7RII, A7SII, A7S, A7S2, A7R
DOTTMON NP-FW50 Dual Slot Battery Charger for Sony NP FW50 Batteries for Sony Alpha A6400, A6000, A6300, A6500, A5100, A7, A7II, A7RII, A7SII, A7S, A7S2, A7R, A7RII, A55, RX10 Camera Battery
High Capacity of 1500mAh Can Meet your Daily Use and Travel Needs., Description, For Sony NP-FW50 Replacement Battery, Powerful Battery Capacity
Sony NP-FW50 Replacement Battery and Dual Battery Charger
Sony NP-FW50 Batteries: Charge 'em without AC Power - Alphatracks
SMALLRIG NP-FW50 1030mAh Camera Battery for Sony A7S II / A7R II/ZV-E10, USB-C Fast Charging Rechargeable Camera Battery for Sony A7, A7S, A7R, A6400, A6500, A6300, A5000, A5100, A6000, RX10-4330
SMALLRIG NP-FW50 1030mAh Camera Battery for Sony A7S II / A7R II/ZV-E10, USB-C Fast Charging Rechargeable Camera Battery for Sony A7, A7S, A7R, A6400, A6500, A6300, A5000, A5100, A6000, RX10-4330
Never worry about your Sony Batteries Again with this Battery Magazine - Alphatracks
Alphatracks - Page 19 of 19 - Sony and Minolta SLR Weblog
JYJZPB NP-FW50 Replacement Battery Charger Set Dual Channel Compatible for Sony Alpha A6000 A6400 A6500 A6300 A6100 ZV-E10 A7 A7II A7RII A7SII A7S A7S2 A7R A7R2 A5100, Camera Batteries Charger Case
【More Power for More Shots】A fully charged 1500mAh NP-FW50 battery prolongs your camera's runtime to capture more photos and shoot longer videos.
FirstPower NP-FW50 Battery 3-Pack and Triple Slot Charger for Sony Alpha A6000 A6300 A6400 A6500 A7 A7II A7RII A7SII A7S A7S2 A7R A7R2 A5100 A5000
DOTTMON NP-FW50 Dual Slot Battery Charger for Sony NP FW50 Batteries for Sony Alpha A6400, A6000, A6300, A6500, A5100, A7, A7II, A7RII, A7SII, A7S, A7S2, A7R, A7RII, A55, RX10 Camera Battery