Hi,
 I would estimate that that torch would have a 10 watt bulb at the very 
maximum.  Better than the 6 watts of a dolphin torch (with a normal 
globe) but much less light than what I would consider a good spotlight; 
ie a minimum of 25 watts or preferably up to 100 watts (quartz halogen 
bulb).
 You can get quite a decent spotlight with internal rechargeable battery 
(+ charger) for around $70 - 80. (Just look on the internet.)
 Dry cell motor cycle batteries are lead acid batteries;  it is just that 
that they are sealed and may be made to take deep cycling.  They have no 
'memory' and so periodic flattening and recharging does nothing for 
them. (NiCad batteries on the other hand do have a 'memory' and do need 
to be completely discharged and recharged each cycle).
Andrew
Alan McBride wrote:
 
Hi Bob,
good advice I'm sure.
 I was only talking about the battery for this M11 ("Naturally with  
these batteries") which incidentally is a 4 C NiCad battery. It also  
comes with it's own charger supplied by Pelican and the instructions  
from them recommend this charge / delete process a number of times as  
it lengthens battery life for each charge and ultimately its total life.
 The batteries on this flashlight don't "need" to be flattened but as  
I usually flatten them anyway while spotlighting it's not an issue.  
The charger that comes with the light is also a drip or trickle type  
charger which doesn't damage the batteries. My suggestion is only  
that periodically you should flatten them. I have worked this way  
with Dry cell motorcycle batteries for twenty years plus and have  
still got one of my original Yuasa Dry cell batteries! working just  
fine.
 I wouldn't personally recommend anyone carry around a battery with  
lead / acid (if that's what you mean?) I've always used Dry-cell  
motor cycle batteries (which nothing leaks out of) with the old  
Aussie shooters spotlights, which by the way is still great around  
Sydney but not much use for carrying on flights with the weight,  
wires, and size issues! It's several KG heavier due to motorcycle  
battery weight and needs a back pack of its own!. The chargers are  
also considerably heavier although much lighter than 20 years ago!
 This torch fits in a side pocket is strong, sturdy and well protected  
and comes with a car plug in charger too!
Regards and thanks for the interesting comments.
Alan
 
 
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