QUESTION I will be using 2 batteries LOADED IN SERIES, in a high power flashlight, will I need protective CIRCUIT, ARE THESE PROTECTED CELLS?
871777
These Hybrid batteries have a safer chemistry and a protection circuit, and are considered safe in most applications. However, unless your flashlight has protection circuitry built in, it is always advised to use protected batteries or, IMR chemistry batteries, when using multiple batteries in series.
2196374
No, the 18650 is both slightly longer than two CR-123a's and larger in diameter. Also, they run 3.3-4.2V as opposed to 5.6-6.4V total for two 123a's - the LED flashlight must be designed to accommodate them. Many two '123a cell lights made in the PRC, like my Olight M21 & M22 and Fenix PD-35, will use them - and work better, too. None of my 2-cell US-made Surefires will fit them - the body tube's ID is too small.
1484947
It has the standard protection for reverse voltage being applied to the Cree LEDs and to keep them from using too much current. Protection when using Lithium batteries is needed inside the battery itself. If too much current is being used or charged a Lithium battery can overheat and explode or burst into flames. Always used Lithium rechargeable batteries having the internal protection built into it.
1178729
I don't know. These are special batts with special chargers. They can be dangerous if used improperly.
367197
I never used the SureFire Flashlights batteries. My use was for my Home Security system which used this size and I felt with some many units, it was better and cost effective to buy rechargeable batteries rather then other regular batteries. Since I did not research batteries, but went on a friends referral, I chose these.
573358
Protected from what? These are high intensity batteries and the flashlight gets hot from the batteries. If I had the flashlight on for any length of time it would become uncomfortable to hold. So I assume if you need this weird size battery, because of it's high intensity, will heat up whatever you put them in.
122856
As the previous answer States, if your light requires CR123A batteries then it should be fine. My only warning is if you value the light to be careful. I don't believe these batteries or charger have overcharge protection or cut off. I blew 2 leds and a xenon in my surefire z2 before realizing it was the batteries causing the issue
64767
Yes they will fit and they are exactly what you want. It is very important that you have protected cells unless you are very knowledgeable about lithium batteries and charging them. They are only a millimeter or two longer and the spring in the flashlight will absorb the extra length. These are the best lithium cells I have seen so far. I use them and really like them. When they say they that they have 3.4 ahr capacity they aren't kidding. I wouldn't buy anything else. Stay away from the so called high capacity cells from china. There are no cells that have more capacity. They last almost twice as long as cells from china that claim 5000 mAh! Yes they will fit and they are exactly what you want. It is very important that you have protected cells unless you are very knowledgeable about lithium batteries and charging them. They are only a millimeter or two longer and the spring in the flashlight will absorb the extra length. These are the best lithium cells I have seen so far. I use them and really like them. When they say they that they have 3.4 ahr capacity they aren't kidding. I wouldn't buy anything else. Stay away from the so called high capacity cells from china. There are no cells that have more capacity. They last almost... » Read More Yes they will fit and they are exactly what you want. It is very important that you have protected cells unless you are very knowledgeable about lithium batteries and charging them. They are only a millimeter or two longer and the spring in the flashlight will absorb the extra length. These are the best lithium cells I have seen so far. I use them and really like them. When they say they that they have 3.4 ahr capacity they aren't kidding. I wouldn't buy anything else. Stay away from the so called high capacity cells from china. There are no cells that have more capacity. They last almost twice as long as cells from china that claim 5000 mAh! « Show Less
359233
I use orbtronic protected 18650 3100 mah cells. With my PD35 on setting two they will last a minimum of 15 hours runtime. These are top of the line panasonic cells with Orbtronic circuit protection. Great batteries, store welll. Come with plastic storage cases so you do not have to purchase seperately. Rated 3100 mah but testing at home shows they have a 3200 mah capacity. You can get two for around 25. You get what you pay for. Not all batteries are created equal, regardless of claims. These are some of the best on the market, worth every penny. I found the higher capacity 3400 mah orbtronics fit very tight in my pd35 so I went with the 3100 mah and it fit perfect. I use orbtronic protected 18650 3100 mah cells. With my PD35 on setting two they will last a minimum of 15 hours runtime. These are top of the line panasonic cells with Orbtronic circuit protection. Great batteries, store welll. Come with plastic storage cases so you do not have to purchase seperately. Rated 3100 mah but testing at home shows they have a 3200 mah capacity. You can get two for around 25. You get what you pay for. Not all batteries are created equal, regardless of claims. These are some of the best on the market, worth every penny. I found the higher capacity 3400 mah... » Read More I use orbtronic protected 18650 3100 mah cells. With my PD35 on setting two they will last a minimum of 15 hours runtime. These are top of the line panasonic cells with Orbtronic circuit protection. Great batteries, store welll. Come with plastic storage cases so you do not have to purchase seperately. Rated 3100 mah but testing at home shows they have a 3200 mah capacity. You can get two for around 25. You get what you pay for. Not all batteries are created equal, regardless of claims. These are some of the best on the market, worth every penny. I found the higher capacity 3400 mah orbtronics fit very tight in my pd35 so I went with the 3100 mah and it fit perfect. « Show Less
797168
You can but it would be stupid to do so. I use 1 protected 18650 and it works great. Extremely bright light. I have had mine for two years and use it for everything. Best light I have ever had
1938775
Protected 18650 are made for flashlights. Correct 2900mAH model is Orbtronic PD2900 made for E-cig mods only.
1219928
I use the AW 18650, or Orbitron 18650, they have a very slight button top. I only use protected cells on my 18650 lights, and I use the Xtar VP1 intelligent chargers.
563313
Dear Customer, Thank you for your question. 930z-1 has built in battery protecting circuit and works with unprotected 18650. Please feel free to contact us if you have further question.
799065
Yes, all drycell "6V" incandescent bulb flashlights used 4.8V bulbs. Under load, 6V of drycells only put out this much voltage. A fully charged 6V wet cell batter say a sealed lead acid battery will be over 7V and instantly blow out a 4.8V bulb. Ask me how I know this...LOL This bulb works well with four cell flashlight. You wont be disappointed. It will be dimmer with fewer cells. Be aware the higher wattage LED bulbs will cause shorter battery life. Simple fact they draw more current. No free lunch.
2066255
Sorry I don't know. Because rechargeable batteries slowly lose power even when not used, and my flashlight gets used mostly for widely spaced emergencies I use standard batteries.
1810466
Yes. This flashlight uses both batteries in series and has a very bright light. Great flash light. If you are buying it as a gift buy two and treat yourself too.
619206
The only batteries I've used so far are Titanium Innovations CR123's and the Orbtronic 3400 18650b here ORBTRONIC 3400mAh FOUR 18650 PROTECTED PANASONIC Li-ion 3.7V Batteries - 10 Amp Dual Protection - For High Performance Flashlights - Button Top - Battery Cases Included No problems with either!