The whole purpose of wearing digital hearing aids is that you should live a normal, dynamic life. If there are restrictions imposed on how you live your life because of devices that you use, there is virtually no point in using them! You want devices to make life easier for you, not more complicated. However, if your idea of a fun life involves a lot of outdoor activity, you have to be careful about how you are handling your listening devices.
Hearing aids tend to pick up moisture and this deposition accumulates in the innards of the device. After a while, they play havoc with not just the mechanism of the device, but also affect the hearing ability. You start to hear static sounds, not to mention other jarring noises that are not healthy to heat at all. You need something like a dehumidifier that can soak up the moisture from the insides of the device. You cannot reach these areas with a cloth or other tools. In fact, it is so much better not to try anything adventurous with such sophisticated gadgets!
Outdoor activity usually means travelling long distances in a car. You have to be careful about where you keep the hearing device while you are in the car. Of course, if you are driving, they stay in your ears without fail! But if you are not driving and want to lie back and relax, try not to put them in the glove compartment or inside the dashboard box. These digital hearing aids are not very comfortable in handling extreme temperatures. The insides of the dashboard boxes can be pretty warm. Moreover, if you are travelling in a cold ambiance, the device will not be able to withstand the extreme swings of temperature between cold and warm.
Despite these precautions, if you feel that your device is not working out well and you have hearing problems, try to give it some rest! Pull off the batteries and let it lie around for a while. Avoid getting into heavy exercises or trekking with the devices on. It can result in sweat trickling in and causing damage to the device. Dirt and sweat mix to form a deadly concoction for the device! If you cannot avoid such a situation, when you are done, take it apart and allow the moisture to evaporate and dry air to waft in. It will be good for the device.