Get a good charger and a couple of pairs of 18650 rechargeable Li-ion batteries for the TK35 to round out the package. Trust me. wink

I try to keep one set of 18650s in the light, a second pair charged and of course you can always fall back to primary batteries in a pinch.
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"There is not a man of us who does not at times need a helping hand to be stretched out to him, and then shame upon him who will not stretch out the helping hand to his brother." -Theodore Roosevelt