ExpertPower&reg; 7.2v 2100mAh NiMh High Capacity Two-way Radio Battery for Yaesu Vertex FNB-29 FNB-29A FNB-29H VX-500 VX-510/L/MU VX-520U/UD VX-530 VX-537 Brand New  We guarantee you will receive a brand new, unused battery easily making this a smart buy. Battery Specs - The capacity is 7.2V 2100mAh, utilizes Ni-Mh technology, and the color is Black. Reliability Defined - ExpertPower products are tested to match and/or exceed OEM specs. Quality Guaranteed - Products trademarked ExpertPower are marketed and sold exclusively by ExpertPower. Peace of mind; 1 Year limited warranty  We know a lot could happen in 1 year. If your product fails, help is one phone call away.