Ok I have a 2s and a m24. My 2s will run virtually any 18650 battery. Samsung pink 2600mha pcb samsung purple 3200mha pcb panasonic 3100mha pcb panasonic 3400mha non pcb flat top with magnet and button top red Ultrafire non pcb. My m24 on the other hand won't run any pcb length battery only the shorter non pcb batteries. Is this common? Is it OK to run good brand non pcb batteries in this torch. Any help appreciated. Thanks.
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