The battery I bought for Swissvoice SV29 as old battery overaged. I have long wondered, as the SV29 is really hard to use. Only in noisy environments, the SV29 offers pleasant advantages (clear and loud). For the price (7) I have but then decided to go for the battery replacement. The battery was delivered promptly and was able to be easily installed. The first up / discharge cycle was completed on schedule, the slightly higher capacity compared to original battery (1050 mAh) has only slightly but noticeably affected. Previously held at my use of the battery within 1 week, the new holding (initially) 1- 2 days longer. Now it only remains to be hoped that permanently brings its performance and the battery lasts a long time. Because the price definitely recommended!
