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The Samsung 30Q - The big brother to the Samsung 25R. This 3000 mAh power bank of a battery is fantastic for those looking to expand their battery life at the cost of not being able to run resistances lower than 0.2Ω on mechanical mods.
From Mooch (@batterymooch on Facebook):
"The Samsung 30Q datasheet (Section 7.9) mentions operation at 20A. Operation at that level can be done as long as we don’t let the battery get above 75°C, its maximum rated operating temperature.
But this is not a high performance “power” cell, designed for high current. It is a high capacity “energy” cell designed for low to moderate power levels and long running time. At higher current levels the voltage sag and power loss in the cell are huge. Do not exceed 20A.
I am giving this cell a continuous current rating of 15A (about 45W using 3.7V) and a temperature-limited rating of 20A (about 60W if using 3.7V) as long as the cell is never allowed to reach 75°C.
This is not a “pulse rating”! There is no pulse length, time between pulses, or criteria used for setting such a rating being defined. The 20A rating is any type of discharge as long as the 75°C limit is not reached.
The 18650 rating table has been updated with the 15A/20A rating for this cell."
Composition: INR Lithium-ion
Positive: Flat Top
Nominal Capacity: 3000 mAh
Nominal Voltage: 3.6V
Discharge End Voltage: 2.5V
Max. Continuous Discharging Current: 15A
Dimensions: 64.85mm (L) x 18.33 mm (D)
Charging voltage: 4.20 +/- 0.05 V
Standard charging current: 1.25 A
Weight: 45.0 g
-Do not overdischarge/overcharge
-Recharge drained batteries ASAP
-Do not short circuit
-Do not dispose of in fire
-Do not expose to extreme heat or water
-Please be familiar with handling lithium-ion batteries before purchase.
NOTE: Use special caution when handling Li-Ion, Li-Mn or Li-Po batteries, they are very sensitive to charging characteristics and may explode or catch fire if mishandled. Do not use any battery if visible signs of damage or stress is present. Always store and transport your batteries in a non conductive container. Always charge batteries on a fire-proof surface. Never charge batteries unattended. Do not modify your batteries or chargers in any way, shape, or form. Use of Li-Ion, Li-Mn or Li-Po batteries without a protection circuit is potentially hazardous. Redux Vapers will not be held responsible or liable for any injury, damage, or defect, permanent or temporary that may be caused by the improper use or handling of a Li-Ion, Li-Mn or Li-Po battery. By purchasing Li-Ion, Li-Mn or Li-Po batteries you acknowledge these risks and attest that you have sufficient understanding of the batteries you are purchasing to use and care for them properly.
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