charger for a bug out bag / shtf gear pack

[brad]

Has there been anymore news on the SkyRC — IFA 2014 — MC3000 charger-analyzer?

[ReManG]

@HKJ

@ChrisGarrett

Just try not to charge anything smaller than the 14500 li-ion (16340/10440) on the Klarus CH1, or AAA NiMH batteries. That one amp charge rate is too high for those specific sizes. Chris

14500/16340 is stretching it, I would say 18500, even 18350 is close to stretching it (I said ok in my review).

I saw your review, and this will be for emergencies only to charge smaller than 18350 sizes. For an emergency though, game on, I will not have much else to do hopefully than watch batteries charge… hopefully. Thanks again for the great reviews, I have been all over your website trying to absorb the information there.

[HKJ]

@hank

a circuit with PTC’s, transient diodes and other noise handling parts.

I’d appreciate a pointer – I could build one following instructions, but would buy one for the emergency kit. It’s those after-the-earthquake confused hours when this would be needed, when there’s no guarantee what will happen while a charger is plugged in.

Generally there are a couple of ways to handle transients.

Fast transients can be blocked with an inductor.

Transients with low energy contents can be eaten by a capacitor, transient diode or MOV.

Slow transients with lots of energy must be blocked, this is usual done with some type of PTC

Then it is a questions of building the right combination of the above, you can search google for circuits.