Powering motor with a li-po battery.

I would like to power two dc motors, using a l293d chip, an Arduino and a LiPo battery. I am a beginner to electricity so I don’t know how to connect the LiPo battery safely and without frying the Arduino.
I left an attachment of my circuit diagram. I would like to replace the 9v battery with a LiPo battery. Could anyone help me with how to safely connect the LiPo.

Specs for the LiPo:
-2200mAh
-11.1V
-40c
-3 cells

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...R

In your diagram your 9v battery does NOT seem to be powering the Arduino and if so it will be safe to connect the LiPo in place of the 9v battery.

I presume you are aware that a LiPo battery can produce a very high current and if the motors can draw a high current the connections in a solderless breadboard won’t be able to carry the current.

I presume you will take care to see that the LiPo is not allowed to discharge to a too-low level or that it gets overcharged.

…R

I am sorry but I am a beginner with electricity, motors and batteries. How do I prevent my LiPo from discharging to a too-low level and overcharging?

johncoder07:
I am sorry but I am a beginner with electricity, motors and batteries. How do I prevent my LiPo from discharging to a too-low level and overcharging?

You prevent it from discharging too much by monitoring the battery voltage - I think the recommended minimum is 3v per cell. The Battery University website has a huge amount of data and advice

You avoid overcharging by using a specialised LiPo battery charger.

...R

All reputable LiPo battery packs have built-in protection circuitry to prevent over-discharge and over-current
and over-charge. If you have unprotected pack or cells you have a real fire-risk and you need to keep them in a
fire-proof LiPo bag, and never operate or charge them unattended.

What voltage is your pack? The L293D wastes 2.5V or so and isn’t useful at all at low voltages, a single cell
wouldn’t be suitable for it.

MarkT:
All reputable LiPo battery packs have built-in protection circuitry to prevent over-discharge and over-current
and over-charge.

Many thousands of “reputable” Lipo packs do not have built in protection circuitry e.g. almost all those used in RC. See https://hobbyking.com/en_us/batteries-chargers/batteries/lipo.html for many examples.

You do need to take some care using them but they are nowhere near as dangerous as sometimes claimed. If you don’t abuse them by charging without a proper charger or seriously overloading them or banging a nail through them they’re fine.

Steve