POWER BANK RENTAL OPTION - VERSION 1
One small charging tower can create several different businesses.
Use it as a permanent unattended charging location, move it through a seasonal calendar, or staff it at high-traffic festivals and events. The same tower can generate rental revenue while its screen creates a separate advertising opportunity.
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Rental Math$3, $7, $8 and $9 two-hour examples.CalculatorBasic and advanced live scenarios.AdvertisingDaily and May-October screen revenue examples.Request a StationJoin the placement waitlist for a hotel, casino, restaurant, venue or other property.Advertise HereAsk about event-matched advertising on one or multiple station screens.ReviewsRead about the product and submit a power bank review.
RENTAL PRICING
Show the customer exactly what creates the total.
The release fee and hourly rate are separate. This lets an operator choose a lower-cost access model in price-sensitive areas without confusing the rental price with the separate equipment-security decision.
Security hold and rental price are different. A card authorization or deposit protects the physical power bank; it is not rental income. The business can explore lower rental pricing while separately deciding how to protect equipment against non-return.
HOW THE 100-BANK EVENT PACKAGE ACTUALLY WORKS
The 76 extra banks are not stored inside the 24-slot tower.
This is an attended-event operating model. The tower has 24 physical rental slots. The extra banks are external working inventory managed by the attendant so the station can keep serving customers when demand is heavy.
1
A customer rents a bank
The machine releases a sufficiently charged unit. The attendant can insert a charged replacement into an available slot.
2
Keep return capacity available
At a busy event, the attendant can leave a few slots open when practical so returning customers can dock their bank themselves and immediately receive return confirmation.
3
If the tower becomes full
The operator can create a return opening by ejecting a unit, or use the system's manual return/check-in workflow. The goal is that the returning customer receives confirmation that the rental has ended.
4
Rotate external inventory
The remaining event banks stay with the operator, not hidden inside the tower. Charged units move into service as rentals occur; returned or lower-charge units can be set aside for charging.
Why this requires an attendant: a hotel-style permanent machine cannot assume someone will unlock it, add reserve banks, or manage a full return situation. That is why the 100-bank model belongs to staffed events, while a permanent unattended placement starts with the banks physically loaded in its tower.
PERMANENT LOCATION
Twenty-four rentals can still make money because there is no event employee.
A hotel, hospital, restaurant, mall, apartment building, entertainment venue or similar permanent site is a different operating model. The machine starts with the 24 banks loaded in the tower, and it recharges returned banks without a $150 event attendant standing beside it.
Those figures are one complete turn of the 24-bank inventory, not a hard daily maximum. Returned banks that recharge and become available again can create additional turns.
PAYBACK REALITY CHECK
One Chicago event season can potentially repay a substantial startup investment.
The attended-event examples below use 80 Friday-Sunday operating days from May through October, a 20% venue share and $150/day staffing. They are illustrations, not guaranteed earnings.
| 100 rentals/day | Net/day after 20% + $150 staff* | $8,760 payback | $20,000 payback |
|---|---|---|---|
| $3 + $2 + $2 = $7 | $410 | 22 days | 49 days |
| $4 + $2 + $2 = $8 | $490 | 18 days | 41 days |
| $5 + $2 + $2 = $9 | $570 | 16 days | 36 days |
WHAT IF IT WORKS ONLY HALF AS WELL?
Fifty rentals per event day still creates a useful stress test.
| 50 rentals/day | Net/day after 20% + $150 staff* | $8,760 payback |
|---|---|---|
| $7 | $130 | 68 days |
| $8 | $170 | 52 days |
| $9 | $210 | 42 days |
*Before card processing, transportation, insurance, repairs, taxes and other unlisted costs.
ADVERTISING REVENUE
The screen can become the larger revenue stream.
One simple example uses up to 10 advertising positions on each tower. At $200 per advertiser, one fully sold tower is $2,000/day. At $300 each, it is $3,000/day. The stronger strategy is to match advertisers to the audience: pet products at pet shows, automotive products at car events, food brands and culinary schools at food events.
| Towers | 10 advertisers x $200/day | 80-day season | 10 advertisers x $300/day | 80-day season |
|---|---|---|---|---|
| 1 | $2,000 | $160,000 | $3,000 | $240,000 |
| 2 | $4,000 | $320,000 | $6,000 | $480,000 |
| 3 | $6,000 | $480,000 | $9,000 | $720,000 |
| 4 | $8,000 | $640,000 | $12,000 | $960,000 |
| 5 | $10,000 | $800,000 | $15,000 | $1,200,000 |
Half sold can still be meaningful: 5 advertisers x $200 = $1,000/day on one tower, or $80,000 across the same 80 operating days. These are gross arithmetic scenarios and assume the advertising inventory is actually sold.
LIVE CALCULATOR
Basic or Advanced
Every result updates instantly. Use the permanent preset for the unattended 24-bank model or the event preset for the attended 100-bank inventory model.
Basic assumptions
Event preset starts at 100 rentals/day and $150 staffing. Permanent preset starts at 24 rentals/day and $0 event staffing.
Basic results
Price per rental$7
Gross / day-
3-day weekend-
Operating days-
Season gross-
Venue share-
Season staffing-
Season contribution*-
Equipment investment-
After equipment*-
Breakeven operating days*-
*Before processing, transportation, insurance, repairs, taxes and other unselected costs.
Advanced assumptions
Advertising assumptions
Advanced results
Price per rental-
Rental gross / day-
Advertising gross / day-
Advertising season gross-
Other added revenue / day-
Total season revenue-
Venue share-
Processing + variable-
Staffing-
Monthly/fixed costs-
Season contribution*-
Equipment investment-
After equipment*-
ROI on equipment*-
Rentals / bank / day-
*Illustrative contribution, not guaranteed profit or net income.
The power-bank business started as a backup plan discovered in China.
Across two trips, almost 90 days were spent in China. The original purpose was to investigate large automated food equipment, including fast pizza vending systems and compartment-style hot-food machines. After uncertainty around licensing that concept in Chicago, a backup opportunity was needed.
On the last night of one trip, a woman returned from dinner carrying a rented power bank. Large rental stations had already been visible around the city, but without watching someone actually rent from one, the business model had not been obvious. A second trip was then used to investigate the opportunity and manufacturers more closely.
That is the point of this site: small, unfamiliar equipment can represent a business opportunity that many people simply have never been shown.
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