hi welcome to a product review by Robojax.
in this video we are going to do the review of these two modules YX-X801 and YX-X850
battery protection power of modules this is a module that can connect and disconnect
your dc from the battery when there is dc or external power and when the power is
disconnected it will connect your battery as you saw there is a small interruption but
generally it can connect automatically your power so we have power battery and your load
we cannot call this uninterrupted power supply or ups because there is a relay and there is 0.7
second delay when it is connected so it can connect your device and x850 also can be used
with that charger so you can connect your charger and charge your battery while there
is power when the power goes off the battery will be connected this has a lot of application
and it will be very useful for a lot of projects we have five volts version and 12 volts version
it can work up to load of 48 volts let's get started with this which connects the battery
you can get the data sheet and related files and links
from robojax.com the link is below the video in the description
the first module is YX-850 and the operating voltage is 12 to 48 volts for this
and release 12 volts so that's why the minimum voltage is 12 volts for the load so this is your
load operating voltage and the maximum load is 10 ampere because the relay can handle up
to 10 ampere then you do you do your math to calculate the power based on your voltage and
can this be used with the charger no and there is other model which has this diode and YX-X850
the operating voltage is 5 to 48 volts because the relay is 5 volts so you can
use it up to 5 volts from 5 volts up to 48 volts and the maximum load is again 10 ampere
and x850 can be used with the chargers because of this 10 ampere diode
that is there I’m gonna explain it fully both modules uses this both modules uses this
xl 7005 converter when you connect 48 volts up to 48 volts this will convert it to 5v for the relay
and pass the voltage out to your load so your load voltage will not change and this will not alter
it's just a switch to turn on and off and connect your load and battery so here is a module the
YX-X801 and this module does not have a diode it's directly connected you can use only a power
supply the power supply is coming from ac and it produces dc the voltage for your load which is
connected in here is the same as your power supply and the voltage is the same as your battery
so these two must match so you can supply the powers here this is a 12 volts version
and so you cannot use anything less than 12 volts but you can use up to 48 volts
if your load is 20 volts 24 volts 40 or 48 volts anything between 12 to 48 it will work and we have
here a regulator that converts whatever voltage you have to 12 volts to power this up but the
actual voltage will come to your device and when the power is disconnected the battery will kick in
and you will get a voltage from battery so here is how it operates now when we have AC power
the DC from AC is connected and this is the relay I’ve just shown you
like that so the negative from green is connected to the battery and negative comes
and goes to your load but the positive is connected to this contact inside this relay
so inside that that relay the load is connected to ac you see it's not connected to the dc
so your load is being powered up as soon as the power gets off the relay will turn off
it will be connected in here so ac is now off in this case on dc this contact is down now the ac
is not connected and the power comes from dc and powers up there is a delay
from this relay of 0.7 a second so that's very important to know this is not uninterrupted
this is interrupted with 0.7 seconds so keep that in mind and here in the model
x850 version has a diode now you have a charger this case this is not a power supply but
a charger which can charge or set your battery and the charge voltage and a battery voltage and your
AC load is the same it must be the same otherwise it will not work now let me show you how it works
when the ac power is available the power will come here the negative is connected the same way
the positive comes here and it powers up your load through this contact of the relay
and in the meantime this diode is working the contact doesn't change but from the diode the
energy comes and charges your battery so this is charging because it goes through this diode
there is 0.78 volts drop which means whatever voltage for this you said you have to add
0.78 to it because the voltage does not reach fully here so we have 0.78 volts
and the battery will be charged now when the power goes off now that this relay contact is going down
with the delay of 0.7 seconds and the battery is supplying now via this line to your load so this
way this module works and here on the actual module the negative is connected for this side
this is for your power supply and the positive on this side and for your battery the same way
it says battery you see battery plus and minus this minus and this minus is connected if you look
at the back you see this is connected all together and it is coming even for the output which is this
terminal so negative is all connected from here it comes and the relay will just turn on and off
and we have an led which will tell you the state of the power ac power and this is a converter
a back converter that if the voltage is higher than 12 volts let's say if it is 15 24 volts 18
volts or 36 even 48 volts it will regulate it and makes it 12 volts for their device and it
does not change anything the input voltage whatever is the input voltage it will come
now this module is exactly the same they've just moved these components on this side and have added
a 10 ampere diode so this cannot handle more than 10 ampere the load that you are connecting is 10
ampere which means you have to know the power of your module or divide power by voltage and you
will get the current then asking about my power supply this is a constant current power supply
that supplies the voltage so you cannot use just any dc power supply it must be a charger that is
rated for your battery and the voltage of your load must be the same otherwise it will not work
let me show you the test I’ve connected 12 volts bulbs
because I want to test it with higher voltage I put these bulbs in series so this is connected
in series so regardless these two act as my load and they have been connected in here
this will not charge your battery this is just a switch this does not alter the voltage or current
or anything you just disconnect and connects them right now you can see this is now connected
the lights are on let me show you this voltage and here now you can read the input power supply
voltage 12.65 volts and the light is on this light means that ac power is coming here and
the bulbs are the load is on powering up the power supply which is supplied from
easy now I’m disconnecting the power supply so you can see that this led will turn off
and this will blink because this switch will just blink and turn it on for you
so now there is no extra external power the led is off but these are now powering up now
I’m measuring the current from my power supply 411 milliampere so whatever is the load
plus this relay now let's measure the current for the load only and here
this is 375 milliampere the load current
let me disconnect the power supply and we will see the current from the battery
390 milliampere because the voltage is higher a little for the battery at the
moment now let me increase the input voltage so we can see that that relay is working even
when it reaches up to 24 volts I can increase because these two and series can get up to 24.
so, let's I’m increasing the voltage as you can see 14 15
so, if I turn the as you can see the lights are getting brighter
so, 24 volts I’m not going higher than that the module is perfectly working
the power is disconnected the battery will be
connected but because my battery is now 12.8 volts it will be 12.8 volts
you see
and now let's just disconnect the power
as you heard there was a click and connected
when the power comes you see very little difference but when it disconnects
now I’ve connected the load to the module now this module that has diode that's eight five zero
now I’m measuring the current from the power supply it shows 989 and we know this needs
at least 350 milliampere the rest is charging the battery now but this is the battery charge current
from easy it's charging the battery and powering up my bulbs as you can see
so let me disconnect the ac power so you can see that the current
will change the polarity to negative and it will be reduced for the power for the for the load
so now I’ve disconnected it shows 401 milliampere so these 401 millimeters is going to the bulb
and release also off connect my power supply back again
now the current is going back in the other direction it become
positive now thanks for watching this was a review of these two modules that
connect and disconnect your power with the battery interrupted not uninterrupted
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