SD Keyring Maxi e cigarette review

Published: 21st Nov 2012

The Best Electronic Cigarette

This is my review of the latest SD Keyring product from the guys at Ecigwizard, the Maxi kit. You might have seen my previous review of the SD Keyring which is a product I adored. I loved the compact size, it's industrial looks and it performed excellently aswell. The Maxi Kit is ultimately the same product but with a larger battery and cartomizer. So I will keep this review relatively short as much of the characteristics are the same as the original SD Keyring. 

The kit was purchased from  As with the original SD Keyring, purchasing options are limited with the Maxi kit with just a choice of either tobacco or menthol flavoured cartomizers, both 18mg of Nicotine in terms of strength.

Presentation box / packaging

The SD Keyring Maxi comes in the familiar formed plastic package with brief instructions on the rear. 

Included in the box are the following:

  • 1 x battery 650 mah
  • 1 x cartomizer 40mm
  • 1 x USB charger

"this is definitely one of the sweetest looking ecigs on sale today"

SD Maxi keyring


One of the main differences between the original SD Keyring and the Maxi kit is the larger capacity battery. The new battery with the Maxi is more than double the original at 650mah, however isn't double the length. It follows suit with the trademark SD simplistic design style, with the entire battery in stainless steel with just the 'SD' logo on the base and the lanyard attached. It's charged exactly the same as the original via a USB charger of which the battery screws into. When charging the LED on the USB charger lights up Red and once charged changes to Green.  I found a full charge was taking slightly longer than the original, about  110 mins but once charged was lasting over 5 hours. 

SD Maxi keyring cartomizer and battery

Switch (responsiveness)

The switch on the Maxi performed in line with the orignial sd keyring, which whilst was good, is not quite as sensitive as some other products on the market and requires a slightly longer draws as a result. However, this is nothing to worry about as it becomes quite natural after a couple of hours use.

Vaping experience

Once assmebled the Maxi measures about 30mm larger than the original SD, making it approximately 120mm in length. I must say once again, that I love the way this products looks, especially now the cartomizer comes in stainless steel aswell. The Maxi has continued with the 510 thread connection which means it is useable with the majority of other 510 products. 

In terms of vaping performance, I was glad to see the Maxi performed aswell as the orignial in terms of vapour production. I can't say I am that big of a fan of the menthol flavour that comes pre-filled in the cartomizer, however this isn't a problem as they are re-fillable.

SD Maxi keyring electronic cigarette

We have managed to agree a 10% discount on Ecigwizard products for our site's visitors. Simply click the below link and enter the discount code BEST14U at the checkout.


Written by Rob Patrick

Share this with your friends

Use the below discount code and save 10% when you buy the SD Keyring Maxi Kit from Ecigwizard

Thinking about trying the SD Keyring Maxi Kit? Use the discount code below when you buy and you’ll save 10%

Buy any electonic cigarette or product from the Ecigwizard store and save 10% while your at it courtesy of Donny and Just use the discount code BEST14U at the checkout. No strings attached saving!

More reviews

Donny's final thoughts

​All in all, the SD Maxi performed brilliantly albeit the switch could be a little more sensitive. However, that said the original SD was great, but with the extra battery capacity and larger cartomizers, and the fact that the price is just £15.49, this product is a winner for sure!



21 / 30

21 out of 30


7 out of 10


6 out of 10


8 out of 10

E-Cig Stats

  • Price - £15.49
  • Warranty - 28 days, 3 days for cartomizers (you must inform them within 3 days also)
  • Battery MAH - 650
  • PCC MAH - N/A
  • Tested battery length - 5hrs
  • Tested puffs per cartomizer - 140

User comments - keep it constructive

What do you guys think? Leave your thoughts and ratings below, but please leave it constructive!