![I found an old light I haven't used in years. Didn't work when I turned it on, and checking the batteries I saw this white stuff on a few of them. When I found an old light I haven't used in years. Didn't work when I turned it on, and checking the batteries I saw this white stuff on a few of them. When](https://preview.redd.it/fvb304n6gdp31.jpg?auto=webp&s=1deeb90a625a81a7c124f246259cf01c5b6511f3)
I found an old light I haven't used in years. Didn't work when I turned it on, and checking the batteries I saw this white stuff on a few of them. When
② Samsung Galaxy J3 2016 Batterij/Accu AAA+ Kwaliteit — Téléphonie mobile | Accessoires & Pièces — 2ememain
![Stuff Certified® Wireless Qi Power Bank Charger 10,000mAh Emergency Battery Battery Wireless Charger Pad White | Fruugo BE Stuff Certified® Wireless Qi Power Bank Charger 10,000mAh Emergency Battery Battery Wireless Charger Pad White | Fruugo BE](https://img.fruugo.com/product/9/36/109155369_max.jpg)
Stuff Certified® Wireless Qi Power Bank Charger 10,000mAh Emergency Battery Battery Wireless Charger Pad White | Fruugo BE
![Caseier 10,000mAh Qi Power Bank - Wireless Charging - 4 Types Charging Cable - USB LED Display Emergency Battery Battery Charger Charger White | Fruugo BE Caseier 10,000mAh Qi Power Bank - Wireless Charging - 4 Types Charging Cable - USB LED Display Emergency Battery Battery Charger Charger White | Fruugo BE](https://img.fruugo.com/product/8/94/145997948_max.jpg)
Caseier 10,000mAh Qi Power Bank - Wireless Charging - 4 Types Charging Cable - USB LED Display Emergency Battery Battery Charger Charger White | Fruugo BE
![white powder around battery but not on terminal. Is the battery bad? - Motor Vehicle Maintenance & Repair Stack Exchange white powder around battery but not on terminal. Is the battery bad? - Motor Vehicle Maintenance & Repair Stack Exchange](https://i.stack.imgur.com/1yBhq.jpg)