Lol, it can be overwhelming. Keep asking questions and it will come clear in time. For the Kanger Sub/Top box kits, you will need 20 amp 18650 size batteries. Good ones are the Samsung 25Rs, or the LG HE2s or HE4s. All are 20A, 2500mAh batteries. Batteries of similar power, but longer life, would be the LG HG2s or the Panasonic 30Qs. There are others available as well, but any of the named ones will suit. For chargers, you can probably get by with a 2-bay charger, since you're looking at a 1-battery mod. However, the price difference for a 4-bay is not a lot and this may attract you; you don't know what the future holds. Nitecore makes good chargers, I own three of them (and some others). The I4 is an excellent 4-bay machine, it takes good care of your batteries, and it uses blinking LEDs for a readout of charge status. It has a a little brother, the I2, which is pretty much identical but 2-bay. Their close cousin is the D4. It is, as far as I can tell, identical to the I4 except it uses an LCD display and you get better information about your batteries, like voltage, charge time and charge rate. It is slightly more expensive than the I4, and also has a little brother, the D2, for a 2-bay machine. I own both an I4 and a D4. I use both all the time and they are good gear.
