D-Cell storage?

[TinderBox (UK)]

I saw these emergency/camping light on Amazon UK, not bad for £8.99 and it gets good reviews, My survivalist prepper instinct kicked in and i orderer a couple, should be here in a couple of days.

They supposedly have an 3.7v 2000mah battery inside and come with an 2W 6v solar panel with a remote control with 3 light levels.

Mabor Tent LED Light, 2.7W E27 Solar LED Bulb 12 Super Bright LED Dimmable with Remote Controller - Solar Barn / Camping / Emergency Light

https://www.amazon.co.uk/gp/product/B018A5TOH6/

John.

 

[Inebriated]

I basically switched over everything to NiMH, even the expensive D NiMH cells but are well worth it. I keep a limited supply of D cells as they take up more space and including if i'm not using the NiMH D cells they are basically not worth buying but they still work after 4 months and still provide adequate runtime (the capacity from 80-100% drops pretty rapidly, within 2 months but settles). I used up all the capacity in my alkaline D cell reserve but if i need more i can get some from my dad as he has a stockpile of them. The AA > D adapters work great, but found it a bit annoying having to replace the dead cells sooner (the light only illuminates for 8 hours) and i can get about 10-12 hours out of my D NiMH cells.

I'd keep the alkalines out of any flashlight or device you care about and only use them when you need them and take them out when you are done and there won't be many leakage in the device. I noticed my older alkalines will generally corrode (not leak) and you get white stuff at the negative terminal but better they leak when they are not in any of my devices.

So I'd be looking at a reduced runtime rolling with the Lithium AA's? I haven't written off the NiMH's, and I can see myself swapping them in for poking around with the lights, but sticking the lithiums back in when I'm done. Plus, if I've got the standard alkalines for actual outage use, and the lithiums stuck in it so that it's ready to go any time, the runtime of the lithiums is a lot less critical.

I think what I'll do is take stock of what I have that I can move to NiMH's for, since that is a small investment on its own, and decide when and how intensely to jump into the rechargeable world, and I'll grab some of these adapters and some lithiums to try out.

And again, thanks everyone for the input!