LG 21700 M50T 5000mAh (Gray)
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Official specifications:
- Nominal energy: 18.20 Wh
- Minimum energy: 17.60 Wh
- Minimum capacity: 4850mAh
- Nominal voltage: 3.63V
- Standard charging current: 1,455A
- Max charging current: 3.395A
- Charging voltage: 4.2V
- Charge interrupt current: 50 mA
- Max discharge current: 7.275A
- Switch-off voltage: 2.5V
- Weight: 68 ± 1 g
- Protected: No.
- Rechargeable: Yes
- Dimensions: 21.1mm x 70.2mm
/LG%2021700%20M50T%205000mAh%20(Gray)-info.png)
This is a high capacity 21700 cell with about 5000mAh, the cell is not for high current.
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/LG%2021700%20M50T%205000mAh%20(Gray)-Capacity.png)
The two cells are well matched.
/LG%2021700%20M50T%205000mAh%20(Gray)-Temp-7.0.png)
/LG%2021700%20M50T%205000mAh%20(Gray)-Temp-10.0.png)
/LG%2021700%20M50T%205000mAh%20(Gray)-Temp-15.0.png)
/LG%2021700%20M50T%205000mAh%20(Gray)-CapacityTimeHours.png)
/LG%2021700%20M50T%205000mAh%20(Gray)-CapacityTime.png)
/LG%2021700%20M50T%205000mAh%20(Gray)-Energy.png)
/LG%2021700%20M50T%205000mAh%20(Gray)-PowerLoadTime.png)
/LG%2021700%20M50T%205000mAh%20(Gray)-TripCurrent.png)
/LG%2021700%20M50T%205000mAh%20(Gray)-Charge.png)
Conclusion
This is a very good high capacity cell, but I got slightly less capacity compare the M50.
Notes and links
How is the test done and how to read the charts
How is a protected LiIon battery constructed
More about button top and flat top batteries
Graphical comparison to 18650 and other batteries
Table with all tested LiIon batteries
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My website with reviews of many chargers and batteries (More than 1000): https://lygte-info.dk/
Thanks HKJ! Do you happen to know what the ‘T’ or lack thereof denotes?
No
My website with reviews of many chargers and batteries (More than 1000): https://lygte-info.dk/
LG M50 looks somewhat similar to Vapcell 21700 5000 mAh, that is a rewrap of the Tesla 21700. Maybe the “T” in M50T denotes Tesla version of the cell
Actually, that is a possibility, knowing that Tesla contracted LG Chem for the Model 3 production in China.
@HKJ, what kind of material is the cell casing made of?
My very own high current Beryllium Copper springs Gen 3:
http://budgetlightforum.com/node/67401
Liitokala Aliexpress Stores Battery Fraud: http://budgetlightforum.com/node/60547
The discharge curves of the M50 and M50T look identical, except that the M50T has less capacity.
Some sort of metal, sorry I am not a metallurgy expert.
My website with reviews of many chargers and batteries (More than 1000): https://lygte-info.dk/
Of course. But is the casing attracted to a magnet?
My very own high current Beryllium Copper springs Gen 3:
http://budgetlightforum.com/node/67401
Liitokala Aliexpress Stores Battery Fraud: http://budgetlightforum.com/node/60547
It do and quite well.
My website with reviews of many chargers and batteries (More than 1000): https://lygte-info.dk/
Actually I doubt it. Because, according to the 10A discharge curve of M50T, it seems to release considerably more heat than the old 21700 Tesla / Vapcell battery. At least there must be another reason why they choose that battery instead.
Thanks anyway.
Just found a small bug in the battery comparator, Henrik. When this cell is selected at the right side, its 2A discharge curves appear red colored (!) instead of blue:
The Light
I am
FIXED: How to properly insert images into your posts without breaking the forum page layout
I wonder how that happened, anyway a regeneration of the data fixed it.
My website with reviews of many chargers and batteries (More than 1000): https://lygte-info.dk/
T stand for Tianjin, China
LG chem tianjin factory
Just check the M50 and M50T datesheet is not the same
Search for the best li-ion battery
https://vapcell.aliexpress.com/store/1084158
https://www.vapcelltech.com
Thanks!