Finally, I have reserved this space to present separately for another novelty that DQG introduced along the SPY and FAIRY. This is a mini-capsules or watertight keychain containers, nicknamed PSK.
They are sold in two sizes, PSK / S (Size-B in CNQG) and PSK / M (Size-A in CNQG) .
These capsules also serves as small containers fully waterproof to carry us through our key small objects inside, such as a folded money note, a pill, a small piece … are designed so that they can also be used as spacers for the battery 10180 to fit the bay of a common charger.
The PSK / S, the smaller of the two, along with battery 10180 give us similar to a CR123 (~ 35mm) battery length, so it is ideal if you are going to charge the battery in a charger for RCR’s / 16340.
The PSK / M, being longer, will give us the ability to charge the battery in a suitable battery bay for 14500 / AA. (*)
Both containers are machined from stainless steel and have a very good exterior finish, with compatible threads and the same pitch as the DQG lights, including O-rings to ensure tightness.
Finally, the PSK / M (Size-A) has another very interesting utility, and is machined allowing hold a 10180 battery inside, so it is ideal if we want to hang it on your keychain with our SPY or FAIRY and always have an extra battery replacement. Inside there is no electrical insulator, and while the inner diameter is similar to the flashlight tube, length height is significantly higher, so there is no risk of shorting the battery, as one of the two poles is always isolated from the capsule. The battery has no lateral play, can only move up or down, so there is no serious risk of abuse the 10180 by shaking it. Still, if we prefer it safe and forget the issue, we can always place one of the SPY or FAIRY spare O-ring in the bottom, or just cut a couple of tiny pieces of padded duct tape and stick on both inner planes to avoid the movement of the battery.
(*) NOTE: As already been mentioned in the general thread on the DQG SPY, small battery 10180 has a limited capacity of about 90mAh, so we will need a charger according to this data to obtain an effective and friendly recharge capability with the small Li-Ion. In principle, it would be ideal to recharge the battery at a current equal to half of its capacity, rounding about 50mAh, but have not reported any problems slightly using higher currents. Obviously, if you do not want to invest in a specific charger for these batteries (or easily mod one of the famous USB charge controller small and cheap boards) you will have to find a charger with the lowest possible charge current.
The problem of charging such batteries at high currents (and when I say high currents I am referring to up to 250mA, please avoid charging this small cell at more than 250mA!) will result in premature deterioration of its chemical and thus its capacity. Even so, and watching the price so affordable that CNQG offers to purchase extra batteries, I would not worry much about this issue and if in the future we see that the capacity has lessen significantly, just order a couple more.
