Check the battery connections, they may have loosened some since it was replaced recently. Retighten all connections then check to be sure the battery has voltage enough to start the engine.
Here is the charger you need: T POWER Ac Dc Adapter Charger Compatible with Shark IONFlex 2X DuoClean IF200W IF251 UF-280 IF285 Series Cordless Ultra-Light Stick Vacuums Cleaner Power Supply https://www.amazon.com/dp/B00B06IBWW/ref...
Here is a link for the charger you need. https://www.walmart.com/ip/AC-Adapter-Charger-for-Samsung-Chromebook-Pro-XE510C24-XE510C24-K01US-By-Galaxy-Bang-USA/915064227
