The biggest issue I have with battery life here is Wi-Fi browsing performance, which is very average. However the reduction in battery size hasn’t affected battery life, with the OnePlus 3 lasting essentially just as long as the OnePlus 2.
For charging, the OnePlus 3 crushes the competition with its “Dash” charger. The unfortunate thing here is that to reap the benefits of fast charging, you must use the included charging brick and cable. Wider fast charging support, particularly using different cables, would be appreciated.