Bort
February 22, 2013, 10:26am
1
I have no 18650s, but have an Olight S20 on its way, so i’ve perused fasttech’s website, and settled on 4 candidates.
Please suggest which of these you think i should go for, these are selected based on price, capacity and quality
Nice discharge curve sanyo, but lowest capacity 2600mAhhttp://www.fasttech.com/products/1420/10001901/1136603-authentic-sanyo-ur18650fm-18650-2600mah-37v-rechar
Intl-Outdoor UR18650FM 2600mAh (Black)
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Official specifications:
Sanyo 18650 Protected Battery
Protected against Overdischarge, Overcharge and Short-circuit
Capacity: 2600mAh
Recommended Max Discharge: 5.2A (2C)
Full charge: 4.2V
Nominal voltage: 3.7V
Cut-off: 2.75V
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This battery has a high voltage at low loads.
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Conclusion
The high v…
panasonic 2900mAhhttp://www.fasttech.com/products/1420/10001980/1141102-panasonic-ncr18650-rechargeable-2900mah-37v-18650-
Orbtronic 18650 2900mAh (Black)
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Official specifications:
Battery cell - Made in Japan (Panasonic)
Protection circuitry - Made by Seiko Japan
Over-current protection
Over-discharge protection
Over-charge protection
Over-temperature protection
Short-circuit DOUBLE protection
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The cell used can be discharged down to 2.5 volt, in my test I only discharges to 2.8 volt, i.e. I do not measure the full capacity. But then, not all lights will be able to use the full capacity. …
also 2900mAh panasonic, why the price difference?http://www.fasttech.com/products/1420/10001980/1233700-panasonic-ncr18650pd-18650-36v-2900mah-rechargeabl
EnerPower+ 18650 2900mAh 3C (Blue)
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Official specifications:
Panasonic NCR18650PD 2900 mAh
Minimum capacity: 2800 mAh
High Drain - this battery is made for high current (up to 10A) applications. With our 7A PCB this battery loses hardly any capacity on high discharge current
Standard charging current: 580mAh for 5.5 hours to 4.2 V
Maximum charge current 1450 mA
Protection circuit: 7 A - For Flashlights with over 20 Wh
Deep discharge protection: at 3V
Raised positive nipple - Butto…
3100mAh panasonichttp://www.fasttech.com/products/1420/10001980/1141105-panasonic-ncr18650a-rechargeable-3100mah-37v-18650
Intl-outdoor NCR18650A 3100mAh (Black)
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Official specifications:
Panasonic 18650A
Capacity: 3100mAh
Recommended Max Discharge: 6.2A (2C)
Full charge: 4.2V
Nominal voltage: 3.6V
Cut-off: 2.5V
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The cell used can be discharged down to 2.5 volt, in my test I only discharges to 2.8 volt, i.e. I do not measure the full capacity. But then, not all lights will be able to use the full capacity.
Note: The tested batteries are samples, on the production version the diameter m…
brted
February 22, 2013, 6:15pm
2
Pretty much any 18650 will work fine in the S20 (assuming it physcially fits in the tube; I can’t comment on that since I don’t have a S20). I just ordered the Panasonic -A with protection:
http://www.fasttech.com/products/1420/10001980/1141103-panasonic-protected-ncr18650a-rechargeable-3100mah
That seems to be a good battery, not the highest capacity out there, but at a great price and has a protection circuit.
Werner
February 22, 2013, 6:23pm
3
Check out this:http://lygte-info.dk/review/batteries2012/Common18650comparator.php
These panasonic 2900 are way different the green PD is made for higher currents…
marcl
February 22, 2013, 6:31pm
4
+1
I would choose the Sanyo. On HJK’s post it mentions the fact that they give more Amps they pretty much anything, down to 3.6v. When you discharge at 3A, I think.
And they are the cheapest per Mah. I look at stuff like that. :bigsmile:
Marc.