NiMH vs Li Ion Batteries

[gstroupe]

I've seen lights that use each kind of battery type, any generally accepted preferences for diving or is it simply cost?

thanks

 

[SmileMon]

In general.. I could write a few things here, but people did a better job:

http://en.wikipedia.org/wiki/Lithium_ion

http://en.wikipedia.org/wiki/Nickel_metal_hydride

 

[Spoon]

hope this helps i had a tough time deciding on my light, in the end i chose the li-ions

http://www.scubaboard.com/showthread.php?t=127483

 

[bradshsi]

I've seen lights that use each kind of battery type, any generally accepted preferences for diving or is it simply cost?

thanks

Since I assume you are buying a light (as opposed to building one), the main practical difference (aside from the physical size/weight of the canister), is that you can figure on replacing a Lithium Ion battery after 3-4 years even if you've only cycled it a few times.

Lithium Ion batteries are subject to aging unlike NiMH.

 

[SmileMon]

With NIMH its recharging cycles...

So you're ****** either way..

 

[S. starfish]

Those are some pretty interesting articles, explains what happened to my Ipod, and my camera. Stupid Li batteries.

 

[Vie]

With NIMH its recharging cycles...

So you're ****** either way..

You can always go back to SLA.

 

[SmileMon]

SLA lifetime is 1-5 years... depending on the current.

Rechargable batteries are just cheaper if you plan to use them constantly for a year more of less.

If you plan to use something twice a year, don't bother with the high price of rechargable batteries and go with alkaline - monster makes a very strong battery.

The trick with all the rechargable batteries - to make their life longer - don't empty them completely and don't overcharge them, and they might survive longer than a year..

 

[wgplife]

nimh batteries only last 30-50 cycles, and their damn expensive to replace. But so are li-ion...

 

[Footslogger]

nimh batteries only last 30-50 cycles, and their damn expensive to replace. But so are li-ion...

============================================
I have several sets of AA sized 2300 MaH batteries (NiMH) and they cost me around $16 for 4. Even with a life of 30 - 50 cycles that is pretty reasonable when you compare it (all things being equal) to Alkalines or the AA sized Lithiums.

'Slogger