Recharging the BA 151 accupack

Do not let the accupacks become completely flat. If you do, they will be exhausted and cannot be recharged (“total discharge”). This happens e.g. when flat accupacks remain uncharged for some time. Please observe the three following rules:

If you notice that the accupack is going flat, switch off the stethoset receiver and recharge the accupack immediately. If you have a spare accupack you can use it in the meantime.

Immediately recharge the accupack after each use, no matter whether it is fully or only partly discharged.

Charge the accupack for 24 hours before you use it for the first time!

Please note: With both charging possibilities, the accupacks are also recharged when the transmitter is switched off but remains connected to the mains.

Environment and health

Devices powered by rechargeable batteries are environmentally friendly. This energy source can be recharged many times. Conventional batteries, on the other hand, must be disposed of as special waste after they have been used just once. If an accupack should be defective or has been damaged due to total discharge, it is then recycled – the dealer who sold it to you will take it back and will also supply you with a new, original Sennheiser accupack. (Recycling methods differ in different countries.)

According to today’s scientific knowledge, the radio waves emitted by this device are by no means harmful.