Most helpful positive review
44 of 45 people found the following review helpful
They cost a bit more but they are worth it!
on July 19, 2012
Lithium Ion batteries are not all made the same. They feature different mAh ratings, some are protected and some are not, some are high quality and meet their specification claims and some don't even come close. These batteries sold by Orbtronic are the top of the line 18650 batteries available. They feature the Panasonic NCR18650A 3100mAh cells that can really provide 3200 mAh of capacity so they exceed their specifications. They are enhanced with a protection circuit board that protects from:
* over current protection - 8 Ampere cut off
* over discharge protection - stops working when the voltage reaches a minimum of 2.5 VDC to protect the battery
* over charge protection - stops charging when it reaches 4.2 VDC
* double short circuit protection
* over heat protection
* A heat resistant layer to make this power cell safer to use
My purchase came to me charged at 3.61 VDC. I charged them with the Xtar WP2 II Smart Charger set at a 1 Ampere charge rate. You can see my video review of that product at this location, just scroll through the reviews until you find my review.
18650 Smart Li-ion Charger and Two 3100mAh PROTECTED Orbtronic (Panasonic NCR18650A cell inside) Lithium-Ion Rechargeable Batteries Kit (NEW Version)
Using a good LI-ion charger is a key to protecting your investment and assuring that the batteries are charged properly and maintained to maximize their life cycle. Here is the charging data for the batteries:
* Starting voltage both at 3.61 VDC
* At one hour they were at 3.91 VDC
* At two hours they we at 4.12 VDC
* At 3 hours they were fully charged at 4.2 VDC
As you can see the batteries quickly charged and they stopped at the specified 4.2 VDC limit. You can tell I have purchased more of these batteries and the charger before and I would not have purchased more if I did not have the utmost confidence in the product and the supplier, Orbtronic.
When I purchased the batteries, they and the other previous order shipped on the same day and I received the product in two days. The service was outstanding and prompt. I had even dropped them an email with a question and they responded within minutes on the weekend.
Before I purchased these batteries I was tempted to buy the cheaper batteries and chargers from other suppliers. I read reviews by people who said they purchased the cheap batteries and they had just thrown their money away as the batteries from the other suppliers were junk. There are even several reviews talking about smoke and even fires coming from cheaper batteries and chargers. It made me investigate these types of batteries on the web. Charged Li-ion batteries can be dangerous. They can explode or catch fire and that is why I purchased the expensive ones with protection built in. The USPS will not even fly Li-ion batteries, iPads, smart phones, Kindles and other electronics that use LI-ion batteries overseas as there have even been reports of fatal cargo airplane crashes due to Li-ion batteries.
I depend on my electronics that use 18650 power cells and I didn't want to have quality issues or potential problems so I brought what I thought was the best available and so far they have proven that they were worth the money. I strongly recommend these batteries from Orbtronic and the battery charger from them is also top notch. Please take the time to look at my video review that I mentioned above.