---
title: "Power Butler - Reviews, Revenue and Downloads in Spain | Apple App Store"
description: "Energy Manager is an application independently developed by Joycube Battery (Suzhou) Co., Ltd. It is specially designed for supporting energy‑storage lithium‑ion batteries and supports dual‑connection"
---

# Power Butler — Spain

![Power Butler App Icon](https://is1-ssl.mzstatic.com/image/thumb/Purple221/v4/a5/8c/5f/a58c5fe8-8b7b-e3e1-69ac-d5586c9a31da/AppIcon-0-0-1x_U007emarketing-0-8-0-85-220.png/434x0w.png)

**Developer:** [Unknown](https://apptail.io/developer/unknown-WoUOZb) (China)
**Category:** Utilities
**Rating:** N/A (0 ratings)
**Price:** Free
**Bundle ID:** com.joycube.app
**Store:** Apple App Store
**Country:** Spain
**Version:** 1.4 (released 2026-08-20)
**Original Release:** 2026-04-16
**Languages:** Chinese, English

**App Store Link:** [Download on Apple App Store](https://apps.apple.com/es/app/app/id6760692566)
**AppTail Page:** [https://apptail.io/app/power-butler-Phwz/spain](https://apptail.io/app/power-butler-Phwz/spain)

## Power Butler Description
Energy Manager is an application independently developed by Joycube Battery (Suzhou) Co., Ltd. It is specially designed for supporting energy‑storage lithium‑ion batteries and supports dual‑connection modes of Bluetooth and Wi‑Fi.

**User Scenario:**
Your mobile phone acts as your Energy Manager! Quickly connect to energy‑storage batteries via Bluetooth or Wi‑Fi, monitor core parameters such as voltage, current and temperature in real time, and accurately assess battery health status. Historical data logging and anomaly warnings keep your power‑usage safety fully under control.

**Main Functions:**

1. Real‑time Data: Including voltage, current, temperature, SOC, etc.
2. Intelligent Alarms: Reminders for various battery pack protection, alerts and fault statuses to safeguard battery safety.
3. Data Tracking: Record and view historical diagnostic data.
4. OTA Upgrade: After the APP connects to the battery, transfer the firmware package to the battery BMS via Bluetooth or Wi‑Fi to realize remote upgrade.

## Power Butler Screenshots
- [Screenshot 1](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/bc/07/c4/bc07c475-9c23-7973-55b8-ab9ccdb8fc84/_U65b0_U5efa_U9879_U76ee__U00287_U0029.jpg/1242x2688.png)
- [Screenshot 2](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/b2/3a/3c/b23a3c5f-57ab-7277-66d3-ace9ebbb3bee/_U65b0_U5efa_U9879_U76ee__U00286_U0029.jpg/1242x2688.png)
- [Screenshot 3](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/b8/8d/bf/b88dbff9-5553-a583-22b7-4cc99c9d19b4/_U65b0_U5efa_U9879_U76ee__U00282_U0029.png/1284x2778.png)
- [Screenshot 4](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/01/33/3c/01333c57-5fe6-6e75-3408-2ad408e8c9ac/_U65b0_U5efa_U9879_U76ee__U00284_U0029.png/1284x2778.png)
- [Screenshot 5](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/6c/04/77/6c04777b-3a1a-ffb9-6b1a-6de256976d5f/_U65b0_U5efa_U9879_U76ee__U00283_U0029.png/1284x2778.png)







## Power Butler Available In
- [Belgium](https://apptail.io/app/power-butler-Phwz/belgium)
- [Germany](https://apptail.io/app/power-butler-Phwz/germany)
- [Spain](https://apptail.io/app/power-butler-Phwz/spain)

---

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