This box mod work with Evolv DNA200 and two 18650. The power is limited to 133w and u've to set 2S instead 3S in eScribe software. This box mod is not easy to assemble. Please be carefull and read FULL DNA200 datasheet before starting the job. Choose accurately wire and battery contact. I attach some version of the body with different connector / drip cap hole and different top look (flat or not flat). Use the kind of battery contact u want. In my box mod i used: Assembly steps in instructions. If u need some different hole or different push button height simple ask me for it. Youtube video: https://www.youtube.com/watch?v=sUWxXvb31AM Post in my blog: http://www.esigblog.com/evolv-dna200-box-mod-box-battery-stampante-3d Good luck ! Update 29/08/2015 Re-upload all the body parts cause an error in STL.I attached some picture with STEP 1 > STEP 11 and i describe here all the assembly phase. Please read the DNA200 datasheet before starting the work. STEP 1 = prepare the circuit and sold 4 long (silicon) wire to battery + and - and to GND and OUT (the GND go to the drip cap / 510 connector body [negative] and the OUT to the central pin of the connector [positive]). STEP 2 = sold a bridge from battery - and GND of the balancing terminal. STEP 3 = sold a wire from battery +. At the end u've to sold it to PIN 2 and 3 of the balancing terminal. I suggest to NOT sold at the same way of the STEP 2 because u've some thickness and after circuit will stand up. STEP 4 = insert all the 4 long wire in the internal big hole. STEP 5 = fix the DNA200 using M1.6 or M2 (5 mm long) screw. STEP 6 = sold the positive contact OUT of the box (to avoid PLA/ABS damage !) STEP 7 = sold the negative contact OUT of the box (to avoid PLA/ABS damage !) STEP 8 = make a bridge of 36 mm (max 18 mm height) with a positive and a negative contact (spring). STEP 9 = sold a wire to the bridge of step 8 and insert in the small hole at the end of the box. STEP 10 = sold the wire of the STEP 3 (positive battery) to the PIN 2 and 3 of the balancing terminal. STEP 11 = sold the wire of the STEP 9 to the PIN 1 of the balancing terminal. U can see two picture STEP_11: this because i did this connection two times to make the best and clean job but u can move the wire how u want. STEP 12 =mount the display and fix it to the board using 2x biadhesive. Of course u've to sold the GND and the OUT to your 510 connector / drip cap (!).