FedEx 3200mAh 3.2V Cylindrical Fire Exit Light Batteries LiFePO4 IFR18650

Product Specification-Single Cell:

LiFePO4 Care Guide: Maintaining Your Lithium Battery:

Because LiFePO4 chemistry lithium batteries are one of the most powerful and long-lasting battery chemistries available, they have become popular in recent years for a range of applications. If properly maintained, they will last a decade or more. Please take a moment to read these tips to ensure you get the longest service from your battery investment.

1. Frequent charging and shallower cycling

With lithium batteries, the battery will last longer if you avoid overly deep discharges. We recommend sticking to a maximum of 70-80% DoD (depth of discharge), except in emergencies.

2. Clean the terminals before installation

The terminals on top of the battery are made of aluminum and copper and will form an oxide layer over time when exposed to air. Clean the battery terminals thoroughly with a wire brush to remove oxidation before installing the battery interconnect and BMS module. If bare copper battery interconnects are used, they should also be cleaned. Removing the oxide layer will greatly improve conduction and reduce heat buildup at the terminals. (In extreme cases, it is known that heat buildup on the terminals due to poor conduction can melt the plastic around the terminals and damage the BMS module!)

3. Never overcharge/discharge your batteries!

The most common causes of premature failure of LiFePO4 batteries are overcharging and overdischarging. Even one occurrence can cause permanent damage to the battery, and such misuse can void the warranty. A battery protection system is required to ensure that no cell in your battery pack is likely to exceed its nominal operating voltage range.

Product performance:

1. Long cycle life. The cycle life of LiFePO4 battery is more than 2000 times. Under the same conditions, LiFePO4 battery can be used for 7 to 8 years.

2. Safe use. Lithium iron phosphate has been strictly tested for safety and will not explode even in the worst traffic accidents.

3. Fast charging. Lithium iron phosphate battery can be charged and discharged quickly with high current 2C. Under the special charger, the battery can be fully charged within 40 minutes at 1.5C.

4. High temperature resistance. The peak temperature of lithium iron phosphate can reach 350 to 500 ℃, while that of lithium manganate and lithium cobalt oxide is only about 200 ℃.

5. Large capacity. Lithium iron phosphate battery has a larger capacity than ordinary battery (lead acid, etc.), according to the capacity density of battery, the energy density of lead-acid battery is about 40wh / kg, and the energy density of mainstream lithium iron phosphate battery in the market is above 90Wh / kg.

6. No memory effect. No matter what state the battery is in, it can be used as soon as it is charged. There is no need to discharge it before charging.

7. Environmental protection, non-toxic and pollution-free. Lithium iron phosphate battery is generally considered to be free of any heavy metals and rare metals (Ni MH batteries need rare metals), non-toxic (SGS certification), pollution-free, in line with European ROHS regulations, green environmental protection batteries.

Performance Curves of LiFePO4 Cell:

1. LiFePO4 Cell Charge Curve (Charge at 0.1C)

2. LiFePO4 Cell Discharge Curve (Discharge at 0.2C )

3. LiFePO4 Cell Charge Efficiency At Different Temperature

4. LiFePO4 Cell Cycle Life Curve

5. LiFePO4 Cell Capacity Change At Smart Floating Charge At 55 degree

FAQ

Q1:Are these new cells?
yes 100% ,factory direct.

Q2: Are you a trading company or manufacturer?
A: We are globally trusted supplier and manufacturer of emergency lighting battery, emergency lighting products, whose batteries range covers Ni-Cd, Ni-MH, LiFePO4,, Lion-polymer and other relevant lithium batteries.

Q3: Can you do OEM?

A: Yes, OEM is acceptable. You can provide the detailed specification requirements to us, our engineers can design the most suitable battery solution for you.

Q4: Is it possible to buy a sample to test?
A: Yes. You can buy a sample to test.