Considering the size of the V6... why not carry an eGo sized unit instead and get the higher battery capacity... of course it wouldn't be an auto battery then.
Myself ( as I've PM'd to Badkola )... I think find a company that would build a Robust style VW unit with a few variations... First let's see the Robust with an eGo next to it for size comparisons...
1. Change the 510 only connector in the drip well .... to an eGo with a
thread sleeve that can double as a drip well if only using a 510 type vaporizer, remove the sleeve to fit an eGo type vaporizer on it.
2. The current Robust is only capable of providing 2 amps of output. The AW 600mah 14500 IMR battery is capable of 4 amp, the eFest 700mah 14500 IMR is capable of 5.6 amp. So increase the amp output up to 3.5 amp ( lower than the max for the AW for safety purposes ). L-Rider has always been reluctant to increase their outputs on their
devices they put out... so another company would likely be a better choice for that reason, not to mention the recent shipment issues that GV is having with them as another good reason to source it elsewhere.
3. Instead of just a variable voltage output... include a variable wattage setting... using RMS as well. In fact, when the Robust was released, VW had already become popular with many... again L-Rider hasn't been very forward looking in this area either.
4. Locate the fire button above the screen or on the top opposite the screen so more of the PV is concealed in the hand. Retain the two adjustment buttons... but place them below the screen so you don't cover the screen with your fingers while changing or reading settings.
5. Provide a tube extension option so the higher capacity 14650's could be used if someone needed the additional
vape time available.
6. Optionally, use an OLED screen so the output ( voltage and wattage ), ohms and remaining battery life all show at the same time. If this is used it would provide another possible option, drop the two adjustment buttons for a twist ring since the buttons wouldn't have a dual purpose any longer.