Since more and more people buy lithium-ion batteries mostly because of their durability and additional safety measures included, there are also other accessories needed, such as 18650 holder, charger and even case practical for everyone to carry the batteries around. The 18650 holder is designed to hold the batteries inside the electronic devices. Sometimes they can be even confused with the chargers, but the difference is obvious, mostly by the performances. The 18650 holder can be made for one, up to four batteries, and it usually has build-in protection circuit module. Some important features of this product, model 18650-4S1P-14.4V made by SmarTEC are:
· Charging voltage DC 16.8 V
· The Maximal continuous Charging current is 4A
· In case of overcharge, the detection voltage is 4.325±0.025V
· Over discharge detection voltage is 2.4±0.08V
· Detection delay time 200-500us
· Protection circuitry ≤60mΩ
· Operating temperature range -40+85
When it comes to 18650 holder, the most important thing is the safety, and this holder can make it happen. On the other side, the user should not mis-handle the holder, because in the case of wrong polarity placement, can happen an accident while charging the battery.
Just like 18650 holder, the right charger must be provided in order to keep the batteries durable and safe for the users. Charging the lithium battery might not be a hard job, but it must be done properly. The type of charger plays the biggest part and the brand, as well. The most popular and best-selling chargers are made by Ultrafire, Tenergy and Trustfire. The best-selling product is for sure the UltraFire 18650 3000mAh 3.7V Rechargeable Li-Ion Battery (Pair) + Charger Combo, partly because of the perfect combination for an affordable price, and partly because of the great performances. The features of this product are:
· It can charge two batteries simultaneously,
· Has an indication light that shows when charge is complete,
· High safety of battery charging,
· Input voltage is 110-240V, 47-63Hz,
· Output is 4.2V 600mA,
· Its dimensions are 3.34 in x 1.85 in x 1.49 in,
· It has overcharge and discharge protection,
· Protection available at 2.75v and 4.2v,
On the other side, the best Tenergy charger is type Multifunctional Charger for Li-ion Cylindrical Rechargeable Batteries (14500, 18500, 18650, RCR123A). Its greatest benefit is the fact that it can be used for many battery types and it has contrary polarity protection and distinguish from batteries. The customers say that its only downside is that is can used only for charging Tenergy batteries. It is also said to be a bit slow, but it is understandable, because it can charge different types of batteries. Also, it is said that the slower chargers can make the battery last longer.
The Trustfire 2500mAh 3.7V IC Protected 18650 Rechargeable Li-Ion Battery (One) + Charger Combo is also one more combination of the battery and charger. This charger is also multifunctional, since it can also charge Ni-Mh AA, AAA, C, D, 9V batteries. The customers are also very satisfied with this product, mostly with the performance and the price, as well.
The price is not everything. No one want to get the cheap 18650 holder or charger and then use it for a couple of days only or completely destroy the battery itself. Safety is the most important thing, and when it comes to charger, anything could happen if someone uses it in the wrong way. That’s why the more expensive products and known brands are better choice for everyone, because they provide reverse polarity protection, overcharge and discharge protection, and make the device and batteries last longer.