For when your 18650 battery isn't quite measuring up, you can always give it a boost with the Magnum Donut Contact. Made with either solid copper or silver and a delrin housing, this little piece of hardware is all you need to make your cells perfectly compatible with Comp Lyfe's 21700 Mech MOD & DoubleDouble (DD) Stackable Extension.
Important Note: Mechanical MODs are an ADVANCED USER PRODUCT and should NOT be used by ANYONE without the proper knowledge on your Battery's Amp Limit and how to test your Atomizer's resistance. Please note that we do NOT offer any warranty or exchanges on any mechanical MODs due to the nature of this product. DOA warranty ONLY! Please be careful when disassembling your MOD, as some parts may be fragile and require extra care. We check each MOD before they are shipped out to you and we are NOT responsible for any parts lost by you.