Thanks for the suggestions. However the windup lights appear to be less than robust. Also I have already purchased most of the lights so I’m just looking for chargers at this point.
SIGShooter, the $3.99 universal charger that I described in post one works great on nimh, but it is for 110v American.
Here is something to look at AmazonBasics AA NiMH Precharged Rechargeable Batteries 4-Pack and Charger with Plug Adapters for the US, UK, European Union, and China
Here is that cheap little USB charger that I like, it is $2.78 here and will charge AA and AAA 2 at a time. http://kaidomain.com/product/details.S009830 it drops to $2.36 per unit if you buy 10, if you think they have access to USB.
As far as durability, if they last long enough to get people used to the idea, then if they ever need a charger, they will find a way to buy one locally.
If it’s the old HuanGao charger it works on 220-230V too (obviously since they have 220V in China). Or you mean the plug?
Wow, you are correct, I overlooked that, all one needs is the UK adapter and I would guess the locals can acquire those if they needed to.
If I am reading this correctly, here is a 99cent one (plug adapter) from ebay, shipped. http://www.ebay.com/itm/like/290838967416?lpid=82
Here are the specs on the $3.99 Universal Battery Charger for 18650, 15340, AA, AAA, D Ni-MH, Lithium, Ni-Cd Batteries and Others
Specification :
Input: AC100-240V / 47-63HZ.
Output: 1.2V / 370mA, 3.6V / 320mA, 9V / 120mA.
This charger support NI-MH, Lithium, NI-CD and some other types of batteries which are 69mm long by 33mm high and it can automatically select corresponding charging mode.
Size: 4.01 × 1.38 × 1.57in(L × W × H)
1. I personally do not think it is timer based as each cell terminates (led goes off)at its own specific time based on how depleted they are.
2. I do not know how to check those.
3. I doubt I have ever got an instance where the cells were not charged. I’ve used 4 cells on them simultaneously countless times and the cells have been charged.
My non scientific test would be I consistently get about 2 nights use (about 18-20 hours) give or take out of my charged eneloops on my quark x aa 2 tactical on medium output. That is on a daily ongoing basis. I would imagine that its pretty close to the manufacturer rated:Medium: 24 OTF lumens for 20 hours.
That said, you might still be right and it might be possible that the cells can get overcharged or not FULLY charged. There is no way I can verify these at home.
Thanks everyone for a lot of great suggestions. The really cheap ones somewhat concern me because they take so long to charge and are likely not very robust. Uganda is a very poor and backwards country. From things that my daughter told me I doubt they have the option to buy a replacement if the need should arise. For example where she’s at there’s no such thing as new shoes; the stores only sell used ones. So a NiMh charger would likely be unavailable
I’m leaning toward buying a handful of the cheap ones that Brad and MoutainKing mentioned, and pairing them with the Soshine SC-F3 charger that Chloe reviewed: Re-review: Soshine SC-F3 Ni-MH LiFePO4 Charger. The Soshine’s are only $5.92 in quantity so it’s close to what I wanted to spend.
Maybe I should just bring Hybrid solar powered flashlights. Don’t have to worry about chargers and are fairly reasonable at about $12 each (for the lower lumen ones). But they don’t have the ‘wow’ factor. When she lit up her ZL SC52 one night they thought it was an alien Star Trek type device 
Do they already have USB chargers for cellphones?
Saw this a while back, maybe you could contact the company that makes the pedal charger and see if they could get one to that area of Africa. Harnessing pedal power to light up Africa
The lights cost $6 each and cost 20 cents to recharge which should last a week on each charge. That’s 10% of what they spend on kerosene which is $2 per week. The pedal charger owner becomes an entrepreneur.
You could consider the Xtar XP1 as well, pretty similar in price to the Soshine SC-F3. Review of Charger Xtar XP1 I’m considering buying either one myself, still undecided though.