PROS: • High capacity (99Wh) • Compatible with V-mount accessories • Durable build quality • LED indicator for battery life CONS: • The charging port cover may come loose over time. I recently purchased the K&F Concept 99Wh V battery holder and I have to say I am impressed with its performance. This battery has a high capacity of 99Wh, which means it can last for hours without needing to be charged. I have used it with various V-mount accessories and have not been disappointed so far. The workmanship quality of the K&F Concept 99wh V-Mount battery is also impressive. It is made of high quality materials that can withstand rough handling, which is great for filming on the go. A nice touch is also the LED battery level indicator, which shows me how much energy is left in the battery. However, the cover of the charging port can be a bit annoying. It tends to come loose over time, which can make it difficult to protect your charging port from dust and dirt. Despite this minor issue, I would highly recommend the K&F Concept 99Wh V-Mount Battery to anyone who needs a reliable, high-capacity battery for their V-Mount accessories. It's a solid investment that's worth the price.