AA to D cell adapter

LED Flashlights – General Info
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Hello. Buying a lantern at 40% off and it runs on (3) D cells. I would like to get some adapters and run it off my expanding supply of AA Ni-MH. Anyone presently doing this? If so, what is a good brand. Also, how much is the runtime reduced. Appreciate any input here. Thanks.

patrick

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Here are just four D adapters alone. Here you go for Ds and Cs. Here is a whole set up. All Eneloops, BTW

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There was a thread here on the subject

https://budgetlightforum.com/t/-/6332

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thank you for your replies. This is a can of worms. I'll probably just get some Duracells for it.

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I use these

http://www.ebay.com.au/itm/2x-Holder-Case-AA-D-Cell-Battery-Adaptor-Converter-/290610668711?pt=LH_DefaultDomain_15&hash=item43a9bee4a7

Or these

1.2V D 8000mAh Rechargeable NiMH Battery

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thanks Cone. This lantern runs on 3 D cells. Do you know if it is ok to put 2 AA's in each D cell adapter, the total would therefore be 6 aa's. Is that too much voltage for the lantern? Someone said the voltage would not increase???

noob

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How do you like the "2x Holder Case AA to D Cell Battery Adaptor Converter"?

How are they with a couple of eneloops?

Thanks benckie!

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thanks Benckie. Do the adapters work well. I have heard some don't make contact? Do you use the adapter in a flashlight? Soshine is a good brand I believe.

thanks,

patrick

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They are OK for the price and do work i use them with AA energizers 2450 mAh. I can see the clip's on the side that hold the positive top down breaking after a bit of use, but sofar so good and for the price they are cheap enough.

The voltage with 2 x AA's is the same as one as they are in parallel so it doubles the run time out of the AA's and shares the load over 2 x AA's per adapter.

So if you use 3 adapters with with 6 envelope's the voltage would be the same as 3 x D cell's.

I find it easier to use the rechargeable D cell's i linked as its hard to find 8 spare AA's in my house as they are always being used for some thing.

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Thanks benckie! I have several dozen eneloops collecting dust at any given time so this will work perfectly for me. Time to order a few.

Done ordering! Thanks again.

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kind of confused here Benckie, but thanks for your explanation. If the AA's were 2000 mAh, 6 of them would be

12000 mAh. How is that the same as 3 D cells at ~12000 mAh each? Soaking it all in, or trying to. Thanks.

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You then can use some thing like this to charger 4 x AA to D cell adapters so you can charge 8 x AA,s in on hit if you have a hobby charger.

http://www.ebay.com.au/itm/Battery-case-box-holder-4-x-D-size-cells-6V-/320576628531?pt=LH_DefaultDomain_0&hash=item4aa3db2733

For other hobby charger battery holders and accessories

https://budgetlightforum.com/t/-/1621

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I said the voltage would be the same i did not mention mAh.

Since you mentioned it here we go as an example, if you brought the 2 x AA to D cell adapters, like i linked and used 2000 mAh envelops and used 4 of the adapters in series in a fenix TK60 or TK70 you would get a 6 volt 4000 mAh battery.

In parallel it would be 1 x 1.5 volt 12000 mAh battery

In series it would be 1 x 6 volt 4000 mAh battery

As a guess your lantern would be wired in series so you would get 4.5 volt 4000 mAh battery

In series you add the voltage together the mAh stays the same.

(e.g 2 x 2000 mAh AA,s is 3 volt 2000 mAh fully charged)

In parallel you add up all the mAh but the voltage stays the say

(e.g 2 x 2000 mAh AA,s is 1.5 volt 4000 mAh fully charged)

Hope this helps.

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