Retevis H777 upgrade six-way charger introduction

Retevis H777 upgrade six-way charger introduction   Retevis H777 upgrade six-way charger, after upgraded it, there are much advantage than before rapid charger. SKU: C9059A Let’s we together to learn Retevis H777 upgrade six-way charger introduction: 1.It has Multi-unit charger protection functions: (1). Overcharge protection (2). Overvoltage protection (3). Short-circuit protection And others. In a word, the safety…