Product Review: High Capacity 2X 3950mAh 51YF Standard Battery USB/AC Charger USB Cable for LG G Stylo H631 T-Mobile/LG G Stylo LS770 Sprint/LG G Stylo MS631 MetroPCS/LG G Stylo H634 Cricket The High Capacity 2X 3950mAh 51YF Standard Battery USB/AC Charger USB Cable for LG G Stylo H631 T-Mobile/LG G Stylo LS770 Sprint/LG G Stylo MS631 MetroPCS/LG G Stylo H634 Cricket is a great accessory for anyone who owns an LG G Stylo smartphone. The battery pack provides enough power to keep your phone running all day, and the USB cable allows you to charge it quickly and easily. One of the things I like about this product is that it comes with two batteries, so you can always have a spare on hand in case your primary one runs out of juice. The batteries are also high capacity, which means they will last longer than most other battery packs on the market. Another great feature of this product is the USB cable. It's fast and efficient, allowing you to charge your phone quickly without having to wait for hours on end. The cable is also very durable, so it won't break or fray easily. Overall, I would highly recommend this battery pack to anyone who wants a reliable and convenient way to keep their LG G Stylo smartphone powered up all day long.