Today I will talk about the Lithium Batteries 14500 3.7V 900mAh Rechargeable and Protected TrustFire (package with two) (TrustFire Protected 14500 3.7V 900mAh Rechargeable Lithium Batteries (2-Pack)) that came in last package I received from DealExtreme. They are battery the size of a AA battery, but the similarity ends there, since these are lithium, such as cell, and capable of providing voltage and current greater than AA.
Batteries 14500 by TrustFire, Chinese manufacturer whose website I did not find, have a nominal voltage of 3.7 V. In my tests showed them between 4.1 V and 4.2 V unladen (nothing beyond multimeter connected), which is within the expected, since the nominal voltage of the battery is charged. The nominal capacity is 900mAh, but that I have no way to test, because my charger La Crosse BC-9009 is unique to AA and AAA batteries. Also remember that batteries 14500 tension is higher than AA, therefore not possible to directly compare their capabilities.
These batteries 14500 TrustFire are protected from, This means that they have a small electronic component coupled to digital stops when the batteries are discharging at a voltage below a threshold, and thus prevent them from fully discharging and can no longer be recharged, and also interrupts the load when the batteries are at a voltage above a threshold, preventing them explode if the loader fails to detect that they are already loaded. Note here that say batteries 14500 can “explode” is not exaggerated, Lithium batteries can explode and really wreak havoc, because they release oxygen in the blast and burn everything that is around. The protection batteries becomes a little longer than normal, but this should not be a problem on most equipment.
In the body of the battery have brand TrustFire, 900mAh capacity, and information that these batteries are high capacity, no memory effect, and a protection circuit with digital precision included. There is indication of positive and negative poles, at “Made in China” no singing, warnings that the battery should not be dismantled, exposed to fire or heat, or have a short-circuit caused. You should not install it with the poles reversed, or mix batteries with freshly charged batteries, do not immerse them in water. Ultimately, notices that everyone already knows or should know. Above the logo is the type of battery “TF 14500”, tension (3,7In) and technology “Li-Ion”, in other words, ions LITIO.
The battery pack is only a durable plastic protecting the poles. A DealExtreme Additional uses tapes to join two of them and put the new seal with the product code. They came wrapped in bubble wrap, inside the envelope is also coated plastic bubble, and so they came well protected.
The fate of these batteries is feed LED Lanterna four stainless Aço Ultrafire C3 Cree Q5-WC, 5 modes, memory, 190 lumens, 1 AA pilha ou 14500 (Ultrafire C3 Stainless Steel Cree Q5-WC 5-Mode 190-Lumen Memory LED Flashlight (1*AA/1*14500)) also gained in DealExtreme, and which accepts either a single AA battery (easily found), as a single cell 14500 (for best performance). With the two charged batteries left a reservation in, in a Battery estojinho properly labeled with a warning that these batteries are 3,7 V not to be confused with AA and used in devices that accept only AA, since higher voltage could easily burn them. The other was for battery flashlight, that really made a big enough gloss, has been used in a range of 15 a 30 minutes, and therefore have not needed a recharge.
And I'm ending here, aguarde o review do Battery Charger UltraFire 3.6/3.7V (UltraFire 3.6/3.7V Battery Charger), which serves precisely to charge these batteries, in coming days. If you also want to shop in DealExtreme, directly from Hong Kong, click here and good shopping.