Keep your mobile radio powered up and ready with the MRB-M4, a high-capacity 4920mAh Li-ion battery designed for rugged use. With double the runtime of a standard battery, the MRB-M4 runs your Motorola mobile radio for 38 hours on a single charge. The convenient top-mounted USB-C port allows direct charging of the battery without removing it from your radio. Simply plug into a power bank, vehicle charger, or AC adapter. Fast charging is supported to minimize downtime. 90% charge in 90 minutes. With an IP65 rating, the MRB-M4 stands up to dust, dirt, and water so you can count on performance in harsh conditions. Integrated circuitry protects against overheating and over-discharging. Rugged and reliable, the MRB-M4 radio battery delivers the extended runtimes and durability required for critical communication. Keep your mobile fleet connected when it matters most. Compatibility: Motorola DP4400, DP4600, DP4800, DP4401, DP4601, DP4801, DP4000e Series, DP2000e Series