Inside a 510 Connector


By far the most common problem reported to us is failure to "fire" and this is usually due to a simple connectivity issue which is easily fixed. Most of these connectivity issues have been caused by over-tightening parts together, because most e-cig parts have moveable centre-poles to enable proper connection with the majority of other parts and over-tightening can depress the centre pole in, which then means that it may not make contact properly. The number 1 rule of using vaping kit is NEVER to over-tighten anything. Just screw on until contact is made, and STOP.

For more details, see below.

The connection between your e-cig atomiser/cartomiser and battery acts as part of the electrical circuit. The outside of each connector acts as the ground or negative pole of the circuit and the center pin acts as the positive pole. These close-up photos show how contact is made inside a sealed 510 connector and where it can go wrong.

Pictured to the left is a sealed 510 battery connector. The first image shows the flat part that connects to and touches the centre/positive pin on the carto or atty. Some connectors have a hole in the middle of this centre pin. This one doesn't, so we refer to it as a "sealed" connector. You can see the edges of the rubber insulator protecting the centre pin from making contact with the rest of the connector.
This is the same connector with the center pin removed.  You can better see the rubber insulator that prevents the pin from making contact with the rest of the connector.
On the right is the same connector photographed from both sides with the centre pin removed. You can better see the rubber insulator that prevents the pin from making contact with the rest of the connector.

On the left is a cross-sectional photo showing both the top and the side views of the 510 connector. You can see the centre pin and how the rubber insulator ring protects the centre pin from making contact with the rest of the connector. You can also see the threads of the connector which is the side the atty or carto attaches. 
The photo on the right shows a close-up of the connector on a 510 cartomiser. The centre ring is the positive pole and the outside of the carto is the negative pole. A rubber insulator ring separates the two poles as well.  Notice the gap between the two.  It is sometimes not as apparent when looking at it with the naked eye.


On the left we see a cross-sectional photo showing a good connection between battery connector and atomiser/cartomiser. When a cartomiser or atomiser is screwed into the connector, the centre pins make a connection for the positive pole of the circuit and the outside of the connector and the carto or atty, essentially the threads of each, make contact with the negative pole of the circuit.


On the right, we can notice there is a gap between the centre pin of the connector and the centre pin of the atty or carto being attached. This lack of contact will cause the atty or carto not to fire. The centre pin height differs between brands and over tightening a cartomiser or atomiser with a centre pin that sticks out more than another may cause the connector to be compressed into the ring. This can cause a connectivity issue with other cartomisers or atomisers in the future.   It is possible on some connectors to adjust the centre pin (see video below).

Over tightening of your cartomiser or atomiser can distort and warp the rubber insulator ring of the battery.  If this occurs the centre pin may make contact with the outside of the connector creating a short circuit which could damage your atomiser, device or batteries and cause your device not to function.


The picture below shows what can happen when you over-tighten your atomisers on a device, particularly a device with a fixed centre pole on it such as the PureSmoker mods. The top four atomisers were returned to us as they were no longer working. We can clearly see this is because they have been over-tightened on the device and attempting to continue using these atomisers will lead to a short circuit and possibly battery/device damage.

The bottom one is a brand-new one with the rubber insulant fully intact as it should be.

How to adjust your e-cig connectors if they are not making contact properly

If your device has a fixed centre pole (such as the PureSmoker and Super T devices) but you are experiencing connectivity issues, you can perform the procedure shown in the video, on the atomiser instead.


With thanks to the guys at MadVapes for the inspiration for this article and the images within.