Pictures here - 3 best starters: Joye 510, Joye Ego, KR808D-1 and the smaller it is, the shorter the battery life. But many like to start with a slim model then get a big one later. Some do that and find the small one if not enough charge or not enough hit, some are fine with the slim ones. Joye is the original manufacturer of 510 the slim model and Ego which is a 510-threaded big model. Non-Joye ones are clones and some are good and some are not. And for slim 510 I only recommend Joye brand and I recommend manual batteries for all slim ecigs (one slim thing called 510 is not even a 510 and one is electrically incompatible). One good Ego clone is the Riva 510 at liberty-Flights.com - their Riva 510 kits are the new version from the one manufacturer that makes 3.7v ones
Best E-Cigarette for a New User
An additional comparison of the slim 510 and KR808D-1
http://www.e-cigarette-forum.com/fo...st-electronic-cigarette-first-time-vaper.html
Notes -
100mah is about 1 hour of moderate vaping
Joye 510 180mah
Joye 510 mega xl 280mah
KR808D-1 180/220mah shorty aka 65mm battery or 280/320 mah for standard aka 78mm battery
(SmokelessImage & Bloogplanet style claims the longer life but have a harder to press button on manuals)
Ego and Riva 510 - 650mah and up and can optionally use the hotter low resistance atomizers and cartomizers
The 510, Ego, Riva 510 are 3-piece ecigs but most use them as a 2-piece with blank cartomizers and as a 3-piece for testing juices and vaping occasional juices
The KR808D-1 is a 2-piece so there are a lot of prefilled and blank cartomizers for it. To test juices on a manual battery you can use a standard resistance DSE901 atomizer and drip tip (dripping is not recommended on auto batteries)