NCR18650GA maximum charging rate?

StorminMatt · Nov 19, 2016

I can't seem to find a reliable figure for this anywhere. Mountain Electronics says 1375mA is the max (and 1000mA is recommended). But Illumination Supply lists 1475mA as a 'standard charge'. And HKJ says 1675mA is a 'standard charge'. Does anyone know the maximum rate at which this battery can be charged? Would, for instance, 2A be too much if you are in a hurry?

SubLGT · Nov 19, 2016

StorminMatt said:
I can't seem to find a reliable figure for this anywhere.

How about on the official Panasonic data sheet?

Tachead · Nov 19, 2016

https://www.nkon.nl/sk/k/ncr18650ga.pdf

StorminMatt · Nov 19, 2016

Tachead said:
https://www.nkon.nl/sk/k/ncr18650ga.pdf

Once again, standard charging rate of 1475mA, but NO maximum charge rate.

Tachead · Nov 19, 2016

StorminMatt said:
Once again, standard charging rate of 1475mA, but NO maximum charge rate.

I wouldn't go over the 1475mA listed on the datasheet myself. 2amps is too high imo. Just keep a spare ready and you never have to be in a hurry. 1amp is a pretty standard charge rate for 18650's and will keep your cells healthy longer.

StandardBattery · Nov 19, 2016

Datasheets for the cell have shown both a standard change rate of 1.675A with a standard charge time of 4hrs (2015.04), and standard charge rate of 1.475A with a standard time of 4.5hrs. The specification may have changed over the development of the cell. Sanyo warns that the maximum charge rate per cell should not exceed 3.35A, which is based on the battery model that the NCR-18650GA belongs to (2015.04). Standard charge rates are based on charging at 25 deg. C.

maukka · Nov 20, 2016

Just as StandardBattery said, 3.35 A max.

http://www.hurt.com.pl/prods/bat/_li_ion/ncr18650ga.pdf

Regarding NCR18650G-H0ANA, the charging current should not exceed 3.35A/cell

StorminMatt · Nov 22, 2016

maukka said:
Regarding NCR18650G-H0ANA, the charging current should not exceed 3.35A/cell

So it sounds like 2A on the Rocket Charger is not a problem, especially if it is just occasionally. I'm also assuming 2A is even less of a problem on higher discharge cells (ie Sony VTC, Samsung 30Q, LG HG2, etc).

hellokitty[hk] · Nov 23, 2016

It's a high quality cell, I just charge at 5A.
High charge rates shouldn't be a big concern with this cell.

SubLGT · Nov 23, 2016

hellokitty[hk] said:
It's a high quality cell, I just charge at 5A.
High charge rates shouldn't be a big concern with this cell.

Really?

kosPap · Nov 23, 2016

maukka said:
Just as StandardBattery said, 3.35 A max.

http://www.hurt.com.pl/prods/bat/_li_ion/ncr18650ga.pdf

Regarding NCR18650G-H0ANA, the charging current should not exceed 3.35A/cell

Exactly, it is a standard recomentation...Li-Ion maximum charge should be no more than 1C (one time the capacity)

and the thing has been referenced several timed before.

NCR18650GA maximum charging rate?

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