Specifications: Li-Polymer battery with 7.4V and 1300mAh for AAXA Projector. Dimensions measure 75.14 x 43.66 x 19.10mm. Certifications include ISO9001, RoHS, FCC, CE, and CB. Services include a three-year warranty and 24-hour customer support. Advantages include four-way balanced shunt technology, double-layer ion circulation technology, and dual technology protection for stability and durability.