Chargers and cables seem to be left behind many times at my places.

I have a tenant that wants to move-in to my property in 3 weeks. I'm planning to reserve the property after I receive the security deposit but should I charge them a half month's rent to cover some of the vacancy peri...

As long as you can charge rent that is more than your payment, insurance, taxes, maintenance (3-10% of your income before you pay your mortgage) and vacancy (depends on where you are but here I estimate 5%.. this is also deducted from your income before you pay your mortgage).Generally, if you can make rent 1% of the purchase price for the house, you're not in too bad of shape. 

The DCFC (DC Fast Charger) networks are owned by large, well-capitalized companies like EVgo, Electrify America, Tesla, etc.

That doesn't mean that the tenant can terminate the lease without penalty though, as it appears you can continue to charge rent until you find another suitable tenant and then sue the tenant in small claims court for any amount of rent due that is not covered by their security deposit. 

@Bill S. from my knowledge they have not charger her a rent or ever set up a lease.

Phone charger plug-ins on every night stand.

Battery charger, turn fridge on before trips, Dump station, Concierge parking service, Tire/Oil/etc check, Big drive ways, electric in each unit, etc.Canopy, I have seen in Texas.

I'm not familiar with all the crazy NY laws, but it's generally understood that the Landlord cannot charge rent on a unit that is uninhabitable.Talk to the Landlord and tell him you expect your rent to be reduced for the days you are unable to occupy.

If that's the case continue to charge rent or start the eviction process