To address the issue of users failing to return rented shared power banks, the core solution is to reduce losses through “rule constraints + technical recovery” while balancing user experience and operating costs. The specific solutions are as follows (all functions are mature features supported by our software):

I. Tiered Overdue Charges + Cost Coverage Mechanism

1. Preset Overdue Billing Rules: The shared power bank software is equipped with a flexible billing module. Purchasers can customize the overdue start time (e.g., deemed overdue if rented for more than 24 hours), set tiered overdue fees (e.g., $1.5 per hour for 24-48 hours, $3 per day after 48 hours), and clarify the upper limit of overdue fees (recommended to be 1.2 times the cost price of the power bank, which not only covers costs but also avoids user complaints).
2. Automatic Cost Recovery Trigger: When the overdue period reaches a preset threshold (e.g., 7 days), the software automatically marks the power bank as “lost”. The system will deduct the cost of the power bank from the user’s bound payment account (this rule must be clearly communicated to users during registration to obtain their authorization). After deduction, the order is automatically terminated, and the user cannot rent again in the future.
3. Humanized Reminders to Reduce Non-Malicious Overdue: At 12 hours, 24 hours, and 48 hours of overdue, the software sends phased reminders via SMS and App push, informing users of the overdue fee and return method. It also provides an incentive of “reducing part of the fee for overdue return” (e.g., only basic rent + $5 overdue fee if returned within 3 days of overdue), reducing the non-malicious overdue rate.

II. Technical Usage Restrictions and Traceability

1. Power Bank Charging Settings: The power bank can be configured to support external charging or not. The shared power bank software can set to only allow charging through the shared power bank station, locking the external charging function of the power bank (only retaining basic power for positioning). When the power bank runs out of battery, users cannot recharge it to continue using, thus forcing them to return it.
2. User Credit Association: Rental behavior is bound to the user’s mobile phone number and payment account. Users who fail to return the power bank or pay the recovery fee within the time limit will be blacklisted and can no longer use all shared power bank stations under the brand. If connected to local credit platforms (e.g., Credit Karma in some European countries), negative records can be synchronized to increase users’ default costs.

III. Operational Strategy Optimization

1. Optional Deposit Mechanism: Two modes are available: “deposit-free rental (binding payment account/credit score)” and “small deposit rental”. For users with low credit scores or first-time users, they can be guided to pay a deposit (the amount is 50%-80% of the cost price of the power bank). If the power bank is not returned, the deposit will not be refunded and will be directly used to offset costs.
2. Return Incentive Design: A “return reward” is set in the software. Users who return the power bank on time can get a coupon (e.g., $1 off the next rental), while no reward is provided for overdue return. The return rate is improved through positive incentives.
3. Regional Rule Adaptation: Rules are adjusted according to the laws and user habits of different countries. For example, some European countries prohibit excessively high overdue fees, so the rate can be appropriately reduced while shortening the overdue recovery cycle; in Southeast Asia where there are many cash payment users, channels of “overdue fee reduction/exemption for offline return” can be added to enhance return convenience.