Lithium Ion chemistry offers certain advantages over other energy storage chemistry like Lead-acid, Ni-MH or GEL technologies. Li-ion cells are comparatively more energy dense thus light weight, can supply high charge and discharge current, have better life cycles, dry and are very much portable. All such advantages has made it popular choices for powering up electronics gadgets like mobile phone, tables, portable speakers, drone, toys, rechargeable lights and many other devices.
This product is 1800maH 3.7V NMC (Lithium Nickel Manganese Cobalt Oxide) chemistry based cell which can be used to power up toys, Solar / Rechargeable Bulbs or other electronics projects.
Detailed specifications for the same are given as below table:
| Battery Capacity | 1800mAH |
| Nominal Voltage | 3.7V |
| Chemistry | NMC |
| Cell Package | 18650 (18mm Diameter, 65mm Height) |
| Permissible Max Voltage | 4.2V |
| Internal Resistance | < 60mΩ |
| Rechargeable | YES |
| Charge Rating | 0.5C |
| Discharge Rating | 0.5C |
| Weight | 40~45gms |
| Brand | Hongli / XTT |
| Applications | Solar, Backup for Electronics Gadgets, Rechargeable Bulb |
Precautions:
- One need to take special care while dealing with Li-ion cells or battery pack
- Don’t charge or discharge without BMS or PCM (Protection Circuit)
- Don’t do piercing or try to open as it may catch fire
- Don’t charge/discharge above/below mentioned voltage rating and maximum charge/discharge current ratings
- Don’t do short circuit
FAQs:
Can we use this cell for Electric Vehicle Application?
– No These cells cannot supply enough current to be demanded by Electric Vehicle. If still used, it would cause over heating of cells and can be fatal.
What is the charging time?
-It would take 2 hrs to charge the cell with 900mA. This cell is rated for 0.5C so maximum safe charging current is 900mA.
How deep this cell can be discharged?
-It is best practice not discharge the cell below 2.85V. However for low current application, like rechargeable bulb, it is often discharged to 2.5V
what are the no of cycles and depth of discharge?
-No of operating life cycles (charge+discharge considered as one cycle) depends on various factors like charging-discharging current, operating temperature, depth of discharge. Ideally these cycles are 250 to 300 cycles at 80% depth of discharge. It is best practice to put the battery on charging one the battery is discharged down to 40% and never leave the battery fully charged and discharged.
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