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سؤال: Will this boost a low batter up to 5v ?

السؤال بواسطة mitchcampbell على 2020-04-07 06:08:43

rcartier No. This is a combination charger and protection board only. It does NOT boost the output at all. The maximum output, when the battery is full, will never be above 4.2 volts. If you need a 5 volt output, you will need to add an appropriate boost converter. (Careful, if you buy another board, some will charge and boost, but will not protect the battery.)

2020-04-07 02:33:26 مساعدة (0)
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rcartier Update: Audio not tested, but LED is red! Every Bluetooth device's LED in the fucking world is blue, but this one is red, why?! Grr!

rcartier 2020-02-06 13:53:36
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سؤال: can I use 10w full range subwoofer with this amplifier

السؤال بواسطة sh_ub_ham على 2019-09-11 10:42:52

rcartier Your question doesn't make sense. There is no such thing as a "full-range subwoofer"! Full-range means that it's range of frequencies is close to that of the human ear, 20 Hz - 20KHz. A Subwoofer is a driver that is designed for very low bass frequencies, ~150 Hz and below. I can only assume that you used the word subwoofer to mean driver (or speaker)... In that case, yes, you can use your 10W full-range speaker with a 12V power supply, if the impedence of the speaker is 8 ohms. If the impedence is 4 ohms, you should try it with 12V, and lower the voltage to 9V if you were getting distortion at high volume.

2020-02-02 01:27:09 مساعدة (0)
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irwinthedj It's an ancient chineese arithmetics, here works the same rule as in P.M.P.O. and max RMS calculation :D

2020-01-15 07:38:07 مساعدة (5)
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سؤال: Does it work to smartphone

السؤال بواسطة Thangjam Aswinikumar على 2019-09-26 05:21:03

rcartier At an output of 200mA, you would need 5 of these in parallel to get 1A... It can be done. But, realistically, it would be better to set it up to charge an external battery pack, and then use the battery pack to charge the phone.

2020-01-11 08:14:04 مساعدة (0)
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سؤال: Can I connect it to lead acid battery??

السؤال بواسطة waqas على 2018-07-13 02:43:33

rcartier A lead acid battery is around 13 volts... The Range of this meter is 2.5 to 30 volts... Gee, is 13 between 2.5 and 30? What do you think? Dumb question!

2019-12-28 08:24:49 مساعدة (1)
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rcartier You can use a 3 conductor ac cord and connect the green ground wire to a metal case which you will use o

2019-12-28 07:35:39 مساعدة (0)
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سؤال: soldering tips are copper ?

السؤال بواسطة Maddumahewa Jagath على 2019-12-17 11:22:16

rcartier Onthe inside, yes... these are coated with other materials to make them last much longer... But copper-only tips of the same type are available, I have seen them here on Banggood. Should be easy enough to find.

2019-12-18 04:02:55 مساعدة (0)
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