Overview: Cameron Sino Technology LimitedCameron Sino was established in 2004, specializing in the production of various types of batteries for 15 years. Committed to global development,with warehouses in USA, Europe, Asia, South Africa.(select nearest distribution warehouse).Fit Model :Bionet EKG3000Part Number: GPHC132MOTProduct Details :Type: Ni-MHCapacity: 4200mAh / 50.40WhVoltage: 12VFeatures: High quality, Cost effective.Customer Service:If you have any issues on batteries, please be free to contact us.7*24h online email customer services. TIPS:For longer battery life, do not charged battery for long periods of time (over 12 hours).We recommend using the battery at least once every two to three weeks, but remember to recharge the battery before use.Please store battery in clean, dry, cool place away from heat and metal objects.