If you have the Viper 850 nm or 940 nm with 5 poles then we recommend that you use the MMS module, as this can be used for both the possibility to connect additional rechargeable batteries as well as MMS dispatch is made possible. Connecting both modules to a Viper device at the same time is NOT possible!
Fitting rechargeable batteries for the additional battery module can be found in our shop.
Scope of delivery:
1 x Battery add-on module for Viper 850 nm or Viper 940 nm