In actuality, you will only have 300 lumens for a little while after loading in a fresh set of AAAs before the power drops off dramatically. Lithium batteries can also shorten the lifetime of incandescent bulbs. So when a headlamp says it can pump out 300 lumens with a run time of 100 hours, you’d be forgiven for linking those two data points and assuming you’d have 300 lumens for 100 hours. A web search may also bring up reports of damage (particularly for devices designed before lithums became popular). (I'd use a voltmeter before and after the pre-discharge verify that the initial voltage peak had been removed.)įor devices produced since lithiums became popular, you have to read the spec sheets or fine print. However, this reduces the useable capacity of the battery in the sensitive device. There is a workaround-run the lithium battery down a bit (in a tolerant device) before using it in a sensitive device. The fact that it is happening identically to two units suggests a systematic problem. Either there is a problem with the batteries or there is a problem with the headlamps. We can help you find them with expert advice and the right gear to keep you. Any of the standard battery technologies should power the headlamp for much longer than 10 minutes if the batteries are fresh or fully charged. The (REI web page) description of the Myo RXP specifically states that it can be used with lithium batteries. Those pristine moments in nature can refresh and recharge us make us feel whole. Many of the more recently designed devices are fine with them. Reserve mode Switching off Eteindre Lamp operation / Fonctionnement de votre lampe One click Un clic Long press Appui long OFF OFF White lighting / Eclairage blanc White lighting Red lighting Switching on & choosing color Allumer et choisir une couleur Red strobe OFF or /ou Install the rechargeable battery Installez la batterie rechargeable 1. I've seen it/heard of it for certain cameras, headlamps, and GPSes. REI repeated the warning on its web pages.) Presumably it is a risk for any electronic device designed before (or ignoring the use of) lithium batteries. (Petzel issued a warning for a number of its headlamps. Initially the high beam comes on, and it's plenty bright for hiking and looking around the campsite or yard. When you turn it on, it's in 'Reactive' mode. Click to expand.This problem is individual device model dependent. The Tikka RXP headlamp has three LEDs: a higher-power white spot LED, a lower-power white flood LED, and and low-power red LED.
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