كل الرسائل

سؤال: How long does the battery last, and can it be changed if it goes flat please?

السؤال بواسطة Boatbeard على 2020-09-21 07:34:35

wuchuangbin Hello friends, you can consult online customer service

2020-10-12 01:42:29 مساعدة (0)
عرض
أجابات (1)

سؤال: When working, do you need to use reflective stickers?

السؤال بواسطة Baoisaocon على 2020-03-16 10:25:46

Boatbeard Not with a propeller, but yes if trying to measure the RPM of a solid shaft or flywheel.

2020-08-08 08:26:33 مساعدة (0)
عرض
أجابات (2)

Boatbeard Thatwould be quite normal - the specifications give nominal capacity of 5250 mAh at .2 C discharge. That means if discharged at 20% of 5250 mA (525 mA x 2 = 1050 mA) it should give at least the rated capacity. Discharging at the highest possible current will rarely give even half of the .2 C rating...

Beware 2019-09-28 15:33:15
4
تعليقات (1)

سؤال: is this liion with DC-DC converter to 1.5V? or is it something else?

السؤال بواسطة walkeer على 2019-02-11 03:31:08

Boatbeard These are NiMH batteries that when charged correctly have no memory effect. They are not 1.5v, that is incorrect - they are 1.2v nominal same as all other NiMH cells. There is no LiPo or converter in these standard cells.

2019-11-28 04:36:08 مساعدة (0)
عرض
أجابات (3)

سؤال: Is a 5 blade fan more efficient than IPRee 4 blade fan?? What size are 4 blade model??

السؤال بواسطة dentonpv على 2019-04-24 12:06:48

Boatbeard Not really, these are low powered devices using around 3v to turn a fine pitch propeller and move a fair volume of air at a modest speed. More or less blades won't make much measurable difference in performance. An odd number of blades might be smoother than an even number because of intrinsic balancing. These are not blowing air like a mains powered fan - but they are quite good at moving warm air out into the living space of a room as long as there is a good difference in temperature between the base and the cooling air across the fins, as it is that differential that powers the motor.

2019-10-18 08:00:31 مساعدة (0)
عرض
أجابات (2)