Our in-house testing shows that when used in 30 minutes sessions once a day, 4 or 5 times a week, the Type A 18V Edition batteries can perform well within acceptable levels for at least 6 months. variations in your own routine may cause them to last longer or shorter periods of time but we recommend replacing the batteries proactively after about 6 months to maintain peak performance.

The short answer is no. Most rechargeable 9-volt batteries output less than 9 volts, some of them as low as 7.2 volts. Although the voltage would probably be enough to allow for a tDCS session, we cannot guarantee the same level of performance with rechargeable batteries and therefore we do not recommend or support them.

ElectroSquare Electrodes are designed to use saline solution as a conducting medium. The cellulose sponge pads inside the electrodes come in a compressed and dehydrated form. In order for proper expansion to occur, they must be soaked in a generous amount of saline and, once fully soaked, can have the excess saline squeezed out of them. Electrode conducting gel has a higher viscosity than saline and does not flow in the same way as saline. The gel solution is also harder to clean up afterward. We highly recommend that users do not attempt to use electrode gel to avoid any issues with their electrodes.

We have received many suggestions over the last 2 years and we are very grateful to all who took the time to make them. Ultimately, we determined that the device’s functionality and overall customer satisfaction rate was very good. The main three things people frequently commented on were:

1: They asked for an easier way to install the battery.

2: They asked for a more corrosion resistant electrode cable.

3: A very small percentage of our customers used weak saline and had issues getting a good electrical connection. The device would take a minute or so to reach 2mA.

In the process of adapting the current device for an easy to use battery compartment, we realized we had plenty of room for 2 battery compartments. That would allow us to use 2 9-volt batteries in series and step up the voltage to 18V while still maintaining the same current regulation properties desired (current max limit to 2mA). The higher voltage is akin to more torque; it gives the device more power to cut through any inconsistencies with the saline solution and allow for a more reliable and immediate connection. We created a prototype and tested its reliability extensively for over 6 months. The final result is the ApeX Type A 18V Edition. That resolved two of the mains requests. The cables were still a problem. The reason is because we were working with our engineers to come up with a way to fasten the cables to the mesh using banana plug connectors that were not welded. Most solutions on the market are welded and corrode very quickly. We had custom plates and rivets created out of the same molybdenum rich alloy classified as marine grade stainless steel or 316 steel. After creating the electrode connectors we always wanted to give people, we then asked our cable manufacturer to help us with corrosion. They came up with a 24hrs long corrosion resistance process that causes the cables to be very corrosion resistance. In fact, we have not been able to corrode these cables with the brutal in-house testing we are performing yet but we are still at it. We don’t want to claim they are corrosion proof yet. Maybe in a few months.

Absolutely. We utilize PayPal as our credit card processor and all credit card numbers and pertinent information is transmitted directly to their servers. We do not store any credit card information on our site and communication between the customer’s computer and the credit card processor is encrypted using the highest available commercial encryption system on the market today.

Our new 18V Edition system allows for a much more uniform tDCS experience due to the higher voltage. 9-volt is usually enough but with 18V you are guaranteed to be able to have a good connection and ready electrical flow without worrying too much about the consistency of the saline solution used.

Devices sold worldwide have been delivered without major issues however international customs is completely out of our control. While we cannot guarantee it, we can work with our customer to ensure the best possible chance of the item being delivered without delays.

No, the unit cannot be modified to output higher levels of current. We highly discourage people from modifying the device in any way. Modifications to the device void the warranty.

The Type A 18V Edition is compatible with the included ElectroSquare electrodes. They are the best tDCS electrodes available on the market. You must soak the included cellulose sponge pad in saline prior to stimulation.

The Type A 18V Edition uses 2 Alkaline 9-volt batteries. They are not included in the package to simplify shipping procedures.

The ApeX Type A has 1 pair of connectors, one anode, and one cathode. The previous model had 2 pairs of connectors but that wasn’t required for the great majority of montages and the feature was discontinued to simplify the internal structure and to make sure users had the easiest and most consistent experience when deciding what montage to use.

While the ApeX Type A 18V Edition is designed to limit current flow to 2 mA maximum, the built-in meter goes up to 5 mA. That gives users a frame of reference when using the device. If the needle were to operate outside the specified range, users can more easily identify the issue as well.

The package does come with printed instructions on how to set up the device, test it and get it ready for use. Instructions are also available in the form of a PDF file regularly updated for the most accurate and up to date information. You can find that within our Knowledge Center page.

tDCS placements are easily found online, a good independent example is www.tdcsplacements.com. We have gathered information about tDCS placements and will be adding it to our site shortly.