1. Scope and contact
This policy covers Easy BMS account services, Bluetooth collection, remote viewing, history, notifications and account management. The developer and operator of Easy BMS ("we") is responsible for this processing. Device preparation and collection setup are explained in the home-page guide.
Privacy and support: easy_bms@163.com.
2. Information we process
| Category | Information and source | Purpose |
|---|
| Account information | Your registration email and password, generated account identifier and login sessions. The server stores a salted password hash rather than a plain-text password. | Sign-in, verification and account-data separation. |
| Battery profiles and settings | Names, chemistry, cell count, optional rated capacity, alert settings and collection authorizations you provide. | Profiles, matching readings and alert configuration. |
| Local connection and cache | Selected Bluetooth device names, system device identifiers, connection settings, collection authorization, pending readings and diagnostic frames. | BMS connection, reading, reconnection, retries and troubleshooting. Raw diagnostic frames stay on the device unless you export or share them. |
| Readings, records and device status | Authorized uploads of voltage, current, charge, cells, temperature, protection state, sample time and data quality; collection-device operation, battery, charging, connection, heartbeat and error status. Curves, charging sessions and alerts are generated from this information. | Remote viewing, history, alerts and troubleshooting. |
| Notification information | Device notification identifiers, installation identifiers, system type, notification environment, language, time zone and notification status when enabled. | Submitting alerts or test notifications and recording processing results. |
| Operation and security | Request times, paths, network addresses, errors and account-operation audits. | Operating and securing the service and preventing abuse. |
| Trial eligibility | A random app-specific installation code is created at registration and kept in secure storage. The service stores only a keyed hash, claim time and account eligibility state. This is not a hardware serial number. Signing out preserves it; a system reset or secure-storage changes may change it. | Verify new-device/new-account trial eligibility and prevent repeated claims; never for advertising tracking. |
| Membership and purchases | App account purchase token, original and current transaction IDs, product, transaction environment, signed-transaction verification results, expiry, renewal/refund/revocation status and, when necessary, encrypted purchase receipts. | Verify and restore purchases, synchronize access, handle refunds and prevent duplicate ownership. The system store used to confirm the purchase handles payment; we do not receive card numbers, security codes or store-account passwords. |
| Feedback you submit | Contact details, descriptions, screenshots and diagnostic materials you choose to send. | Support and access, deletion or complaint requests. |
Missing measurements are not treated as actual readings. Simulated data is labeled. Remote viewing does not access vehicle location, contacts, your photo library or microphone recordings, or use battery readings for targeted advertising or cross-app tracking.
3. Purposes and necessity
Information is processed to provide sign-in, your battery data, collection authorization, history, alerts, notifications, export, troubleshooting and account deletion. Email and password are necessary for account services. Optional rated capacity can be omitted, which may limit estimates.
Denying notification permission does not prevent viewing existing readings. Where consent is required, we obtain the necessary authorization. We do not sell personal information or use it for targeted advertising.
4. Membership, trials and purchase verification
Trial eligibility and paid access use account information, an installation-code hash and purchase verification data. A purchase sends an app account token to the system store and returns signed transactions and renewal, refund or revocation status to associate the purchase with the correct app account. Necessary receipts are encrypted and used only for verification and restoration, never advertising.
Membership determines history access and any applicable live-viewing entitlement. Subscribing does not automatically enable Bluetooth, notifications or other optional permissions. The account trial requires no subscription and does not bill automatically. See Membership & subscriptions for duration, benefits and restoration.
5. Permissions and system features
| Feature | Processing | Your choice |
|---|
| Bluetooth and local collection | Only after you choose and authorize collection: connect to the selected BMS, read battery status, cache and upload readings, and process background Bluetooth events or pending uploads when permitted by the system. | Deny or revoke Bluetooth permission, stop collection or revoke its authorization. Viewing existing remote data does not require local collection. |
| System notifications | With permission, device notification identifiers are used to submit alerts. Notifications may contain a battery name, alert content and event identifier and appear on the lock screen. | Deny or disable notifications in system settings; records remain available in the app. |
| Network access | Sign-in, access to your data, live updates, export and notification registration. | Remote updates may stop when offline. |
| Export and sharing | Files are generated and system save or share features opened only when you initiate the action. | You choose where to save or whom to share with. Photo-library or microphone access is not required. |
Background execution depends on the system, BMS communication, connectivity and power and may be interrupted. Viewing remote data does not automatically start local collection. Changing permissions does not delete cloud data. Stopping collection, revoking an authorization and deleting an account are separate actions.
6. Service processing and disclosure
Service infrastructure and system notification mechanisms process the information necessary for account access, storage, network delivery and notifications. Notification processing includes device identifiers, content, routing and delivery results; alert content may appear on the lock screen. Processing is limited to providing these features and is not used for advertising tracking.
If you share an exported file, your chosen recipient receives that file. Information is not provided to unrelated recipients except as needed to deliver the service, at your choice, with applicable authorization or as required by law. Changes to purposes, methods or information categories will be disclosed and any required authorization obtained.
7. Retention
| Data | Usual retention |
|---|
| Accounts, profiles and notification registrations | While the account or relevant feature is active; online data is handled through the applicable deletion operation. |
| Samples, completed charging sessions, resolved alerts and historical events | When membership retention is enabled, members and active trials retain the most recent 30 days by default; free accounts retain 24 hours. Current limits appear in Membership & subscriptions. Sessions use their start time and alerts their creation time for the window. |
| Ongoing monitoring state | Active charging sessions, unresolved alerts and necessary rule state remain as needed for monitoring; completed records follow the history window. |
| Processed notification tasks and security audits | Normally up to 180 days; pending tasks remain until processed. |
| Trial and purchase verification records | Retained as needed to verify active membership and purchases. Account deletion clears encrypted receipts and deactivates app access. Installation-code hashes, claim times, account/purchase tokens without email or battery history, transaction IDs, products, expiry and status remain as needed to prevent repeated trials, duplicate binding and resolve necessary disputes. These protected records are not claimed to be anonymous. Their use is restricted; contact us for access or deletion under applicable law. |
| Server-generated exports | Normally up to 24 hours; changes to the account history window may restrict access sooner. Downloaded/shared copies are managed by their holders. |
| Local collection settings, cache and diagnostics | Authorization and connection settings support resuming enabled collection. Pending readings and diagnostic frames use bounded rolling storage. Stop collection, revoke authorization and manage local data as needed; account deletion does not erase local copies on other devices. |
| Operational logs and support materials | As needed for troubleshooting, security and your request; contact us to request access or deletion. |
Periodic cleanup can cause a delay. Legally retained information has restricted use. Backups are handled separately from online data; contact us about backup retention and deletion.
History cleanup normally starts daily at 03:00 Asia/Shanghai. After trial or subscription expiry, free-account access and cleanup apply. Subscribing cannot restore deleted history.
8. Your rights and account deletion
- View and correct editable account or battery information in the app, and export records you wish to keep.
- Manage notification permission in system settings and collection authorizations under Account → Batteries & gateways.
- Confirm Account → Delete account & data to delete online account data, battery profiles, associated readings, charging records and alerts, and invalidate login and collection authorizations.
- For access, correction, deletion, consent withdrawal, complaints or sign-in difficulties, contact easy_bms@163.com. Necessary identity checks will not require your password.
Deletion is irreversible; export required records first. Uninstalling or signing out does not delete your cloud account, and signing out of a viewer does not stop separately authorized collection. Copies downloaded, shared or retained on other devices require separate handling.
Deleting your account does not cancel store subscriptions or stop renewals; cancel separately through the system store. Access from a deleted account is not automatically transferred to a new account, and restoring purchases cannot recover deleted battery history. Minimum trial/purchase ownership records are described under Retention. Downloaded, shared and other-device local copies require separate handling.
9. Storage and security
Account information and uploads are processed and stored on servers providing Easy BMS. Safeguards include encrypted transport, account authorization, salted password hashes and secure device storage. No network or device provides absolute security; protect your credentials.
Contact us about actual storage regions and backup arrangements. Where applicable law regulates cross-border processing, we meet the required notice, authorization and other legal requirements. Using the service alone is not separate consent to undisclosed processing.
10. Children and minors
The service is for users of battery-monitoring equipment and is not specifically directed at children. Users under 14 should have a guardian’s guidance and consent. Contact us if a minor’s information may have been processed without necessary authorization.
11. Policy updates
This policy may change with features, services or legal requirements. Revised versions and dates appear here. Material changes will be disclosed and renewed consent obtained where required.
12. Website and contact
These privacy and support pages require no login, include no advertising trackers or analytics scripts, and collect no information through web forms. Page delivery and security may produce network-address, request-time and browser-request logs. Email links only open your mail app; you choose whether to send.
Contact easy_bms@163.com with your request. Do not send passwords, verification codes or unrelated sensitive information.