All about Electronic (Electronic circuits, wiring, equipments and safety Dedicated Discussion)

[Hassan1991]

https://www.daraz.pk/products/tl494-100w-12v-to-0-110-220v-micro-inverter-12v-to-dual-110v-step-up-circuit-board-i300964169-s1629244276.html?spm=a2a0e.searchlist.list.60.77fe5ab0sKv42a&search=1

Something like this, or you can use a simple relay with battery voltages monitor.
Relay turn on by the supply and charger will be connected to it. Means when 220v voltages will be supplied charger would charge the battery ( through battery voltages monitor). As soon as voltages goes off. Relay turns off connecting Battery to router through NO pin.

[helper_learner]

i got it...

BTW, what third option? I am more inclined towards it, as i have already have 18650 Lithium Ion Cells

[Hassan1991]

Yes you can use it.
But as you know, you will need charging circuit.

[helper_learner]

you will need charging circuit

what type of charging circuit? The one i shared (daraz product) wont be enough?

[Hassan1991]

No that is a battery manager (battery voltages monitor I was referring to). You need a charger to charge them.

[helper_learner]

can you suggest any product (board) i can attach with this circuit?

[Hassan1991]

Sure. Will share after searching.

[helper_learner]

Thanks

[helper_learner]

@Hassan1991

https://circuits-diy.com/12v-battery-backup-power-supply/
This is exactly what i need;

Can you help me simplify this circuit.

I dont need transformer i will ad dc adaptor, i dont need any indicators, just simple circuit

I will attach this circuit either with 18650 Lithium Ion Cells through battery manager,

Or with the motorcycle battery as shown in the diagram

[Hassan1991]

This is with motorcycle battery, because you need a cut-off circuit to disconnect the supply when battery charges.

This with lithium-ion battery as it already got cut-off charging circuit in BMS.

Rough diagrams.

[helper_learner]

Thankyou soo much , I will go arrange the parts and will share the final product IA..

Thanks again.

One last question , the diode you have written is i believe 1N4007, correct me if i am wrong

[Hassan1991]

No need to mention
Surely do update.
Yes 1n4004 or 1n4007 will work or you can use 1n5404 3amp diode.

[horticulturalist]

AoA,
Can this thing be modified if I tingle with its circuit?
Its over and under voltage protector

[Hassan1991]

Wailaikum Assalam
See if circuit got variable resistors for adjustment.

[horticulturalist]

I'll pry it open to have a look

[horticulturalist]

I think its not possible bcz it has a relay which is hard to open up.

[Hassan1991]

Yes. It just a relay. No controller to monitor voltages.

[horticulturalist]

Will there be any identical relays having different voltage range?

[Hassan1991]

Difficult to find one. Usually they have similar voltages range.

[horticulturalist]

Thanks