I just ordered one of these $320. Thought maybe you guys would be interested also.

http://www.industrysearch.com.au/Produc ... Lamp-17264

Introducing the new light-weight and compact 6400-LI caplamp with lithium Ion battery. With the battery weighting only 600 grams, it is one third the weight and size of lead acid caplamp battery.

WHEAT LI-16 by KOEHLER LIGHTING PRODUCTS

Koehler Lighting products has designed a new light-weight battery for the 6400 series international cap lamp

Features:
• Ergonomic, user friendly, no maintenance design
• Equipped with a red LED which can be used as a tail light in addition to indicating charger functions
• Uses the same charging racks as the lead acid Wheat battery(and modular Oldham charging racks)

Specifications:

Capacity (nominal) 16.0Ah
Nominal voltage 3.75V
Operating Voltage 4.2V to 3.0V
Charge Voltage 4.2V +/- 50mV
Cutoff Voltage 2.5V
Temperature Range
Discharge -20? to +60 Celsius
Charge 0 to +45 Celsius
Weight Battery 600 grams
Weight complete system 950 grams
Dimensions 100mm long x 57mm depth x 125mm high
Headpiece weight 177 grams
Bulbs - Main Halogen 1 amp 600+ hrs life
Auxiliary Argon 0.5 amp 400+ hrs life

_________________
Tony

Appalachian Fuels
Eagle #1 Deep Mine

nice, i considered getting one of these, but my wheat lamp has some sentimental value and it has been on a ton of great trips. so for now i want to keep what i have. when the battery says its time to replace me maybe ill get one of these light weight ones.

_________________
Come over to the Dark Side....... We have Cookies!

I've heard from two different sources now that these lamps have a tendency to simply shut off every now and again for no apparent reason, stay off for a few minutes, then turn back on again like nothing happened. I have no idea why, nor did the guys who had the problem, but I guess it's happened (Leaving them in the dark). oh wellllll........

_________________
This ain't longwall... this is long hole!

yea ive heard the same thing from one guy. also mine rescue uses them and they said they arent real happy with them. when they train most of them bring their own lamp. let us know if yours works good or not........

_________________
Come over to the Dark Side....... We have Cookies!

The lithium Ion battery should theoretically last a lot longer on a single charge and be a lot smaller, but it will not take the abuse that a lead acid batter will be able to put out. Lithium Ion batteries generally are suppose to last 1000 charges and have a life of a few years before they go bad. The lead acid batteries can last a lot longer as we have seen.

Miner Greg

yeah, my battery is 6 years old already and still burns a solid 11 hours at least.

_________________
This ain't longwall... this is long hole!

yea adam made me aware of the build date on the back of the battery so i looked at mine. it was made in 00 and as of my last burn test it was still burning strong after 11 hours....... thats impressive, i dont even put distilled water in it like you are supposed to, just pour it in from the tap! must be the good amd water we have here in the northern field anyways i got a new battery coming so im going to put this battery on my back up wheat lamp, and give that battery to banksey for his msa mine spot. they will fit and the original batteries for them are pure junk.

_________________
Come over to the Dark Side....... We have Cookies!

My battery was built in 9- 05 and after using it at pioneer for some of the day yesterday I turned it on at 7:00pm and when I woke up this morning at 9;00am it was still burning, but a little orange. I would have to say that I can trust my lead acid battery, and like everyone else said, I too have heard good and bad about the lithium ion ones..... But I still really want one!

yeah, they leak like a mofoin edison lamp! (the MSAs)

_________________
This ain't longwall... this is long hole!

hey! i am quite fond of my edison lamp......... it doesnt leak as long as you dont turn it over

_________________
Come over to the Dark Side....... We have Cookies!

not good for the low vein then eh there chuck?

_________________
This ain't longwall... this is long hole!

negative, ill stick to the wheat lamp, and use the edison for special occasions

_________________
Come over to the Dark Side....... We have Cookies!