Mag p7 ?
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Northern Lights
Flashlight Enthusiast
The P7 draws 3.0 amp-3.2 amps on some direct drive arrangements.
C-bin with I bin Vf, forward voltage of 3.50 would draw10 to unde 12 watts of power
The general rule of "thumb" for li-ions as the 18650 and cr123 is that the battery cannot tolerate more than a 2c draw (2 times Capacity).
so if your 18650 is a 2400 or 2500 chinese made battery it likely really is 2200 mAh capacity as these are over rated usually, except AW brands. That mean at 2c they could tolerate 4400 mA or 4.4 amps.
yep, that sure takes into account the 3.2 Amps.
E-moli 18650s from tool packs have a nominal voltage of 3.7 volts and can stand a much higher current requirement than the lithium ions which are the lowest on the totem pole.
Yes, 18650 will work but the real question is run time. If you know what bins the P7 is running you can figure it uses up to 12 watts of power. A A123 C cell, 26650, at 3.3 volts and 2.3 Ah can deliver 7.59 watts.
The AW C cell 26540, at 3.3 Ah and 3.6 volts can deliver 11.88 watts, just at an hour run time compared to 36 minutes of the 18650 example I just used. The 26700 e-moli at 3.7 volts and 3.0 amps delivers 11.1 watts.
Hope you can use the numbers to decide. Generally the 18650 in a single cell delivers half the run time of the C cell size batteries. But it can power the P7.
The 18650 is as it says 65mm long, standard C cell is 50 mm. All the above you see are a little longer.
C-bin with I bin Vf, forward voltage of 3.50 would draw10 to unde 12 watts of power
The general rule of "thumb" for li-ions as the 18650 and cr123 is that the battery cannot tolerate more than a 2c draw (2 times Capacity).
so if your 18650 is a 2400 or 2500 chinese made battery it likely really is 2200 mAh capacity as these are over rated usually, except AW brands. That mean at 2c they could tolerate 4400 mA or 4.4 amps.
yep, that sure takes into account the 3.2 Amps.
E-moli 18650s from tool packs have a nominal voltage of 3.7 volts and can stand a much higher current requirement than the lithium ions which are the lowest on the totem pole.
Yes, 18650 will work but the real question is run time. If you know what bins the P7 is running you can figure it uses up to 12 watts of power. A A123 C cell, 26650, at 3.3 volts and 2.3 Ah can deliver 7.59 watts.
The AW C cell 26540, at 3.3 Ah and 3.6 volts can deliver 11.88 watts, just at an hour run time compared to 36 minutes of the 18650 example I just used. The 26700 e-moli at 3.7 volts and 3.0 amps delivers 11.1 watts.
Hope you can use the numbers to decide. Generally the 18650 in a single cell delivers half the run time of the C cell size batteries. But it can power the P7.
The 18650 is as it says 65mm long, standard C cell is 50 mm. All the above you see are a little longer.
