If you could share links to 3 such products, that'd be really helpful for the discussion. Imho they do qualify as power banks.
Originally Posted by ChibiM
I am going to assume that the AA's are connected in series (4s1p, 3s1p, 2s1p) and not in parallel (1s4p, 1s3p, 1s2p), am i right? One can verify this assumption when the power bank claims to provide "min 2450mAh" or "min 1900mAh", even though it is fed with 2, 3, or 4 AA batteries. In such a case, they simply substitute a single liion cell: fully charged 3×1.45V = 4.35V, under load 3x1.2V = 3.6V. Similarly, a single-18650 flashlight could easily substitute for a 3×AA flashlight.
Hence there is a marvelous workaround trick for those who want to use their Eneloops to feed the skyrc power bank:
Since the slots are spacious, one could probably insert the NiMH's in a round 3s1p-battery holder (AA: SKU1276001, AAA: SKU1276100, SKU1276000, SKU1279700) and then insert this loaded holder in one of the skyrc slots, good idea kreisl thanks problem solved! Will it work? Sure, why not. I have not tested it because i don't have any round 3s1p battery holder. Next time i order stuff from Fasttech, i'll include the 4 items. Great accessories t/a the machine.
smole thanks for your interest! The product development stage is definitely beyond prototyping, there have been early production runs of 100pcs+ before IFA 2014 in order to learn about the tooling process and the production output quality, and the product passed those formal tests! Unfortunately i am not entitled to utter anything about release date or price. I believe that even the maker does not have this info. But i'll continue to share relevant aspects and technical details regarding the product and development to keep you informed.
Btw the planned release date was Xmas '13