Best D size NiMH ever used!

I was in market for a nice D sized rechargeable and got so disappointed by those in target/walmart that marks 2500mAh looks like all that energizer/duracell did was put a bigger shell outside a AA battery and sell for much more money. I got 4 of these Tenergy cells from a friend and they are simply AMAZING!
Not only the capacity is so huge but also I heard they are the new generation low-self-discharge and after a few months use I can testify that all these are TRUE!
One bad thing for me is that I do not have a good charger my old D cell capable charger can only do 500mA so it took a whole day and night for me to charge them but I have never had to do the recharge often at all it lasts so long that I feel like it is battery than those disposable duracells although I have not done any precise measurement.
I believe my last set of duracell disposable lasted about a month or so in the baby swing set and the tenergy lasts for well over a month in my impression coz I only had to charge them twice so far within 4 months.
I know my AA NiMHs will dry out in 2 months even if I do not touch them so the low self discharge seems really helped.
Combining all the facts - 10Ah huge capacity low discharge and rechargeable! I am sure these batteries are the best D cells I've ever used!
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