Privacy Policy for LVFU Energy Storage Management Application

1. Introduction

This Privacy Policy explains how Chengdu Greenfaith New Energy Technology Co., Ltd. ("we", "us", "our") collects, uses, stores and protects personal data when you use the LVFU mobile application designed for energy storage hardware management. This document complies with Apple App Store review requirements, the General Data Protection Regulation (GDPR) applicable to users located in the European Economic Area, and relevant regional data privacy laws.

By installing, logging in and using our App, you consent to the data processing rules defined in this policy.

2. Categories of Collected Data & Usage Purpose

• Bluetooth interactive data: Temporary communication data generated during Bluetooth pairing between your mobile phone and energy storage batteries. Data is exclusively used to deliver Wi‑Fi configuration credentials to your on‑site hardware for network access setup. Short‑lived transmission data will not be stored on cloud servers permanently.
• Device operational metrics: Battery voltage, remaining capacity, charging & discharging status uploaded by connected storage hardware. We display these real‑time indicators inside the App for your daily equipment monitoring.
• Coarse location data: Location coordinates tied to your bound energy‑storage devices, rendered on the built‑in map panel for deployment position visualization. Location records are bound to your independent App account and will never be applied for cross‑app user tracking, advertising targeting or third‑party data resale.
• User uploaded media (optional): You may pick images from the photo album or capture snapshots via the device camera to scan equipment barcodes for hardware binding & identification. All captured photos and album-selected pictures can only be viewed under your own account authorization. No gallery media or camera footage will be uploaded for marketing profiling or shared with external third parties.

3. Data Sharing & Third‑Party Disclosure

We do NOT sell user personal information to advertisers, data brokers or unrelated third parties. Data disclosure only occurs under the following mandatory scenarios:

• Legal compulsory requests issued by authorized judicial and government institutions;
• Data transfer triggered during corporate acquisition, asset restructuring (we will enforce identical data privacy constraints for the transferee);
• Third‑party infrastructure vendors responsible for cloud server hosting, who are bound by non‑disclosure contractual clauses.

We do not integrate tracking SDKs for cross‑platform user behavior profiling, therefore no user tracking data will be delivered to external advertising platforms.

4. Data Storage & Security Safeguards

• All cloud‑hosted data adopts industry‑standard AES encryption during transmission and persistent storage;
• Account‑based permission isolation prevents unauthorized cross‑account data access;
• Hardware interaction temporary Bluetooth payloads are erased once the Wi‑Fi configuration procedure finishes.

5. GDPR User Rights (EEA Residents)

End users within the European Economic Area hold the statutory rights listed below. You may submit an application via our official business email to exercise your entitlements at no extra cost:

• Right of access: Request a downloadable copy of your stored personal data;
• Right to rectification: Correct inaccurate location / device profile information;
• Right to erasure: Apply for full deletion of your account‑associated cloud data;
• Right to restrict data processing under legally qualified circumstances;
• Right of data portability, and the right to file formal complaints with local data protection supervisory authorities.

6. Data Retention Cycle

Account‑bound device location & operational records are retained while your account remains active. Once you submit a permanent account deletion request, all user‑tied stored data will be purged from our production servers within 30 business days. One‑time Bluetooth runtime payloads are discarded immediately after local pairing work completes.

7. Policy Revision Notification

When material updates are made to this privacy policy, we will publish the revised document on our official privacy webpage, and push in‑App notice reminders for logged‑in users. Continued App usage after the effective revision date constitutes your acceptance of updated clauses.

8. Contact Information

For privacy‑related inquiries, GDPR right execution applications and complaint submissions, reach our data compliance team at: alex@lvfubattery.com