Questions - lighting performance
- How does my lamp perform when using regular batteries?
If needed - for emergency use only - you can use two AAA - LR03 - 1.5V
lithium or alkaline batteries (Ni-MH and Ni-Cd rechargeable batteries are
not compatible). Insert batteries only in the specified order. Warning, using
regular batteries significantly reduces the lamp’s performance (you may also
lose REACTIVELIGHTING mode). Battery life is 24hours (non-regulated).
The energy meter doesn’t work.
- Does the lamp perform as well at very low temperatures?
No, at very low temperatures, the battery loses capacity and the beam doesn’t
project as far. On the other hand, the battery life increases slightly. The lamp
recovers its full performance when returned to an ambient temperature of
about 20°C.
- How is the lamp’s battery life calculated in
REACTIVELIGHTING mode?
The reported battery life is the result of structured field testing, done at night.
One method was done to give the battery life for the different levels (high and
economy) in REACTIVELIGHTING mode.
- I’m not getting the battery life in REACTIVELIGHTING mode
that is indicated in the Instructions For Use - why?
The indicated battery life is for information only. In your use, the battery life
can vary. Be sure the lamp is properly tilted when worn to optimize battery
life. The lower the beam is tilted, the longer the battery life.
- Why is lamp performance different with the KITBELT?
With the KITBELT, the cable between the battery and the lamp is longer,
which results in a voltage drop to the lamp. The lighting performance is thus
slightly less than with the battery on the head and a very short cable. On the
other hand, the battery life increases slightly.
Only one LED is working - why?
The lamp is in REACTIVELIGHTING mode. In this mode, the lamp adapts to
ambient lighting. If you are in a well-lit environment, the lamp will not burn at
maximum power. Switch to constant mode; if the second LED doesn’t light,
contact PETZL after-sales service.
Questions - rechargeable battery
- Can I change the battery without its battery case?
Yes, you can buy the battery cell alone: as a spare part: reference E36A20.
When changing the battery (cell only), be sure to do a complete charge to
re-initialize the energy meter, otherwise it may give false readings. Use only
a PETZL ACCUNAO rechargeable battery. Using another type of rechargeable
battery can damage your lamp. Do not use another type of rechargeable
battery.
- Can I use another type of rechargeable battery other than the
PETZL battery?
No.
- What is my battery’s charging time?
The charging time is:
- About 3-4hours on the PETZL USB wall charger.
- About 5-6hours on a computer, but it can take longer if several USB
peripherals are connected at the same time.
- About 3-4hours on the PETZL car charger.
- On other chargers (solar, non-PETZL wall charger), the charge time depends
on the charger’s output current. Example:1A charger:3-4hours, 500mA
charger:5-6hours, 200mA charger:12-14hours.
This Li-Ion battery is designed to be charged at a minimum current of
500mA. Try to charge with devices that deliver at least 500mA.
- I bought a second battery case. Can I change the batteries
(cells only)?
Yes, it is possible, but be sure to do a complete charge to re-initialize the
energy meter, otherwise it may give false readings.
- Can I recharge the battery case directly on a USB port,
without using the USB cable?
Yes. However, it is a good idea to unplug the the case from the lamp to avoid
overloading the USB connection.
This should only be done occasionally, as the battery case is heavy and can
cause mechanical stress on the USB ports of the product and the computer.
Questions - generalities
- Why is this lamp not recommended for children?
See question «Is my lamp dangerous for the eyes?»
- How does the NAO behave with an avalanche beacon?
The NAO headlamp meets the requirements of the 2004/108/CE directive on
electromagnetic compatibility.
Warning, an avalanche beacon in receive (find) mode can experience
interference when in proximity to your NAO headlamp. In case of interference
(indicated by static noise from the beacon), move the beacon away from the
headlamp.
- Does the lamp’s sensor emit harmful rays?
No, the sensor is passive. It emits no radiation. It only analyses the available
ambient light.
- Is my lamp dangerous for the eyes?
- There is a risk of retinal damage from the emission of blue light, particularly
in children. The optical radiation emitted by the lamp can be dangerous. We
advise you to avoid shining the beam into another person’s eyes, and do not
stare into the lamp. The NAO headlamp is classified in risk group2 (moderate
risk) according to the IEC62471 standard.
- If the lamp is at a distance of more than 175cm from the eyes, it goes to
risk group1 (low risk).
- If the lamp is at a distance of more than 208cm from the eyes, it goes to
risk group0 (no risk).
- Is using the Li-Ion battery dangerous?
No, but you must follow some guidelines to avoid damaging it. See the
Instructions for Use. Rechargeable battery temperature must be between
0°C and 40°C (between +32°F and +104°F) for the charge to be effective.
Charging a Li-Ion battery whose temperature is 0°C or less is not possible.
The battery temperature during use must be between -30°C and 50°C
(between -22°F and 122°F).
- What technology is used for the sensor?
Its a visible light sensor with sensitivity comparable to the human eye.
Questions - maintenance / storage
- What should I do if I don’t use my lamp for several weeks or
months?
For prolonged storage, recharge your battery until the energy meter has two
bars lit, then unplug the battery case (repeat this every 6months). Store it
in a dry place at temperatures between -20°C and 30°C. After 12months
in these conditions without use, the rechargeable battery will be discharged.
Avoid allowing your rechargeable battery to discharge completely.
- Can I carry my battery case without the protective plugs? Is
my battery case waterproof?
No, because there is a risk of dirtying or damaging the various electrical
contacts (contacts at the connector cable or USB connector). The protective
plugs also help prevent water from getting into the case. If the battery case
gets wet, you must properly ventilate and dry it before reusing the lamp.
