Best Buy:UltraFire 18650 3000mAh 3.7V Rechargeable Li-Ion Battery (Pair) + Charger Combo
Product Description
Indicator light lets you know when charging is complete.
Designed to charge your batteries quickly and safely.
Input Voltage: 110-240V, 47-63Hz
Output: 4.2V 600mA
Charges 1 or 2 batteries simultaneously
Dimensions: 3.34 in x 1.85 in x 1.49 in
Weight: 2.46 oz.
Ultrafire Li-Ion Rechargeable 18650 with IC Protection.
Capacity: 3000mAh.
Voltage: 3.7V.
Can be used in laser pointer,Torch Flashlights and other electronic products.
Over charge and discharge protection.
Protection kicks in : 2.75v and 4.2v.
Over-Charging / Draining at 4.2v / 2,75v
- Ultrafire Li-Ion Rechargeable 18650 with IC Protection (pair)
- Charges 1 or 2 batteries simultaneously
- Can be charged over 500 times
- Holds 85% charge over 12month period
- Travel charger folds up for easy transport
UltraFire 18650 3000mAh 3.7V Rechargeable Li-Ion Battery (Pair) + Charger Combo Reviews
UltraFire 18650 3000mAh 3.7V Rechargeable Li-Ion Battery (Pair) + Charger Combo Reviews
| 75 of 77 people found the following review helpful:  Poor battery, and not for high current applications., By Amazon Verified Purchase This review is from: UltraFire 18650 3000mAh 3.7V Rechargeable Li-Ion Battery (Pair) + Charger Combo (Electronics) I purchased two sets of Ultrafire 18650 3000mAh batteries with charger. The included charger works well for travel needs but does not seem to have two independent charging channels, as there is only one charge status LED. It works well enough for casual use with inexpensive cells in my collection, but a higher quality charger such as the Pila IBC is a good investment if you get serious and want the most out of your more expensive 18650 batteries.My only complaint is these batteries after being freshly charged cut out under a high load because of the protection circuit board which seems to be current limited to only around 2.5 Amps. For instance, when trying to drive a Ultrafire WF-502B or WF-501B flashlight with the 900 lumen Cree XML-T6 P60 LED drop-in on max power, it will only illuminate for a couple seconds and then cut off. Running it for a few minutes on medium power to partially drain the battery then allows it to run continuously on high power. The measured current... Read more 14 of 14 people found the following review helpful: Waste of money, By Amazon Verified Purchase This review is from: UltraFire 18650 3000mAh 3.7V Rechargeable Li-Ion Battery (Pair) + Charger Combo (Electronics) I purchased these for a fenix tk 35 flashlight. Both batteries indicate fully charged in charger and charger shuts off. When put in flashlight the highest mode would not work. the light would turn on for a second and then shut off. This is what the flashlight does when the batteries start to die. My other AW and tenergy batteries will last me about 2 weeks of light intermittant use before the turbo mode will stop working. These wont work at all in turbo. High mode will work but I never left them in to see how long. I tried to charge them a couple of more times using a different charger but it was the same thing, charger would turn on then after about 1 min would indicate batteries fully charged then shut off. Contacted R-lsales via amazon and was given a address to send them to in California at my own expense. Shipping was going to be $12.00, cost of batteries were $15.00. Wasn't worth the trouble. Waste of money.Have purchased a couple of sets of tenergy batteries since... Read more 8 of 8 people found the following review helpful:  Works, but doesn't live up to claims, By Amazon Verified Purchase This review is from: UltraFire 18650 3000mAh 3.7V Rechargeable Li-Ion Battery (Pair) + Charger Combo (Electronics) I purchased two sets of these batteries on different days from the seller "CREE Flashlight." The first set I received was defective -- the included battery charger LED turned went out after about a minute of being plugged in. I wasn't sure if the batteries were still being charged, so I pulled them off the charger and measured the voltage with my digital multi-meter. I plugged them back into the charger for an hour, and took another reading. One of the batteries remained the exact same, and the other actually lost .02 volts. I spoke with Amazon about getting a replacement and was asked to send this set back while another was shipped to me. I decided that I would keep the original set until I had the opportunity to compare them to the replacements (fully charged, of course) and would select the two best batteries from the set of four.I received the second set promptly (thanks, Amazon!) and put the batteries in the charger. It worked! About 45 minutes later I had two... Read more |
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Best Buy:Ultrafire 18650 XSL 2600mah Protected Button Top Rechargeable Lithium Battery Li-Ion
Ultrafire 18650 XSL 2600mah Protected Button Top Rechargeable Lithium Battery Li-Ion Reviews
Ultrafire 18650 XSL 2600mah Protected Button Top Rechargeable Lithium Battery Li-Ion Reviews
 Great batteries., By RMLA "Ray" (Tickfaw, La) - See all my reviews This review is from: Ultrafire 18650 XSL 2600mah Protected Button Top Rechargeable Lithium Battery Li-Ion (Electronics) I purchased four of these batteries for my Fenix TK 30 flash light along with the UltraFire Rapid charger.They have been great. Easy to remove and replace between recharges. The light is used two or three times a week for about thirty mins each use, and I replace and recharge them once a week. |
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Best Buy:Makita BL1815 18-Volt 1.5 Ah Compact Lithium-Ion Battery
Product Description
18V, 1.5AH Lithium-ion Battery, Built In Memory Chip, Memorizes The Usage History & Communicates With The Charger, Less Weight, Lithium-ion Battery Weighs 40% Less Than Ni-MH Or Nickel Cadmium, Anytime Charge, Lithium-ion Batteries Have No Memory Effect & Can Be Charged At Any Time, Charging Technology Controls Current, Voltage & Temperature To Maximize Battery Life.
- 1.5 Amp Hours
- For use only with Makita Chargers DC18RA;DC18SC;DC24SA
- 5X lower self-discharge keeps battery cells active and ready to use after long period of storage
- Charging at any time will have no effect on the battery
- Battery's built-in Memory Chip communicates with the charger to maximize battery life
Makita BL1815 18-Volt 1.5 Ah Compact Lithium-Ion Battery Reviews
Makita BL1815 18-Volt 1.5 Ah Compact Lithium-Ion Battery Reviews
| 58 of 60 people found the following review helpful: Excellent batteries as compared to other high-end brands, By Eric O. (California) - See all my reviews This review is from: Makita BL1830 18-Volt LXT Lithium-Ion Battery (Tools & Home Improvement) I have owned a set of Makita tools with the LXT batteries for a couple years now and I have noticed absolutely zero power loss or any other problems. I use them quite regularly whether building concrete forms, decks, remodels, etc. I can think of three things that may be happening to the batteries of those who have commented on bad performance or longevity; (1) Occasionally, batteries can be bad from the factory (I have yet to own a milwaukee tool with the new "V" or "M" series battery that holds up past a few months. I have both V28 and M12, and have had ALL packs replaced) (2) It is possible to have a bad charger which is damaging the batteries itself, or (3) Perhaps the users are taking them all the way to the point of stalling and complete discharge, and for that the batteries are truly not made to do. It is best that once you notice the battery pack is wearing down, to grab a fresh one and put the discharged on the charger to cool down and refresh. Also, if the batteries... Read more 21 of 21 people found the following review helpful:  Works fine for me..., By BF (OR) - See all my reviews Amazon Verified Purchase This review is from: Makita BL1815 18-Volt 1.5 Ah Compact Lithium-Ion Battery (Tools & Home Improvement) I went ahead and invested in a pair of these batteries despite the mixed reviews, figuring I'd at least get a year out of them with the warranty. So far, they've performed just fine, even on tools that are supposed to only use the BL1830. I mostly use them on the BHP454 drill (note: this is one of the tools that's keyed for the 1830 pack) and BTD141 impact driver when I'm not going to be using them for long, so the decreased runtime doesn't bother me. I also use them on the angle grinder and recip saw (after removing the little tab on the tools) for light work in tight spaces. I wouldn't want them to be my only batteries, but they're a great addition to a couple of the larger batteries if you have a few tools that can use them.These slim packs are very handy on the drill, impact, and flashlight- the lighter weight and smaller size are noticeable, especially with the smaller (BDF/BHP452) drills. However, buyer beware when it comes to using them on the 'heavier' tools, as... Read more 17 of 17 people found the following review helpful:  Premature battery death gets covered by extended warranty, By This review is from: Makita BL1815 18-Volt 1.5 Ah Compact Lithium-Ion Battery (Tools & Home Improvement) As many other reviewers have noted, the Makita LXT line of tools are excellent when the batteries are functioning properly. I have had 4 of the tools, with 3 batteries total, a little over a year with just occasional serious hobby use. One of my 1.5 amp-hour batteries has failed after about 6 recharge cycles, but beyond my 12 month battery warranty. The Makita service center said the battery has an internal memory counter of the number of charge cycles: mine did indeed show 5. The batteries *should* last about 1,000 charge cycles. The rep told me that if a battery has fewer than ~150 cycles, they replace it free, independent of age.I know this is not a substitute for working right the first time, but in my experience it appears Makita is making a good faith effort on the battery problem. Despite this serious blemish, I think I would make the same Makita purchase decision again. |
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