Capacity: 830mAh Battery Type: Li-ion Voltage: 3.7V Model numbers fit to: SIEMENS Gigaset SL78H, Gigaset SL780, Gigaset SL785, Gigaset SL788, Gigaset SL400, Gigaset SL400A Compatible battery part numbers: V30145-K1310K-X444, V30145-K1310-X445, S30852-D2152-X1, 4250366817255 RoHS approved for toxic free. CE and ISO9001 Certified for Quality Assurance. Search Tip: Press Ctrl and F keys to prompt a search dialogue box, then type in your device's model number and click 'Find Next'.