Are Lithium Batteries Lighter Than Alkaline

Lithium batteries are much lighter than alkaline and rechargeable - great for a hot shoe mounted flash. And they last considerably longer. Just remember the voltage dropoff at the end is very steep. By the time you realize that the batteries are low, they're already dead. Carry spares!

Finally a battery tester that will read NIMH batteries, along with Alkaline, Lithium and 9Volt. The pulse load gives a more accurate reading of what battery to use in a portable flash unit. Very easy to use and packs in easily when in the field.

It's good to have a battery testing on hand and this one does the lithium and alkaline batteries. One thing I would note is for rechargeable batteries that have been handled a lot; it a good practice to clean terminals with  isopropyl alcohol otherwise it could give inconsistent results. This is covered in the manual and in their FAQ on the website. It is not readily apparent as to why you would need to read the manual for such a straight forward device :).

Love the lithium battery. Lasts so much longer than all the alkaline batteries I was using and best of all it saves me gas on all the trips I don't have it make to change those alkaline batteries.

Much better than alkaline batteries!

Much better than alkaline batteries

Works great in my PX1R. Much brighter than alkaline batteries.

This replaces a pair of alkaline batteries which we were burning through quickly

I use this for alkaline AA batteries.� They easily slide right in and stay put, until I slide them out.� Batteries can be slid in either way, so when they become used up I can tell.� With this design the batteries won't accidentally fall out and start rolling around the floor.

Very versatile, You can use lithium batteries to power it