A+ Gold Series Battery (BN35 / BN56) by MXD. Box code BN35 / BN56/9A. The MXD-BN35-BN56 comes with battery type: Li-ion polymer, rated voltage: 3.85V and capacity: BN35 3200mAh, BN56 5000mAh (typical). Features: A+, Gold Series, Temperature Protection, Overcharge Protection, Overpower Protection. MXD – Quality for Everyone.