Note:Without battery
Features:
1. DIY 12V battery box, specifically designed for 18650 lithium batteries, featuring a 3x7 18650 mounting layout for flexible battery pack assembly. Equipped with a 40A BMS with balancing functionality, it ensures safer charging and discharging, effectively protecting the batteries and extending their service life.
2. Features a built-in voltage and capacity display, allowing real-time monitoring of battery voltage and remaining capacity without the need for additional tools, making it convenient and practical; equipped with 2 USB ports supporting QC3.0 fast charging, it can be used as a power bank to meet emergency power needs for devices such as mobile phones and tablets.
3. The casing is made from high-quality plastic, which is hard, impact-resistant and wear-resistant. It effectively shields against external dust and minor impacts, protecting the internal batteries and electronic components. A range of standard colours is available, and custom colours are also supported, allowing for adjustments to suit customer requirements and align with different usage scenarios and brand identities.

Specifications:
Model: 12V Battery Storage Box
External Dimensions: 152 x 65 x 94 mm (manually measured, with a tolerance of 1–2 mm)
Internal Dimensions: 146 x 60 x 82 mm (manually measured, with a tolerance of 1–2 mm)
Colours: Green, Black, Blue, Yellow
BMS Specifications: 3S 12.6V 40A Balanced BMS (compatible with 3S 12.6V lithium batteries only)
Display Features: Real-time display of voltage and battery capacity, providing an intuitive overview of the charge status
USB Ports: 2 x QC3.0 USB ports, supporting fast charging
Material: High-quality plastic, sturdy and durable, waterproof and dustproof, protecting internal components
Applications: 12V Uninterruptible Power Supply (UPS), electric vehicle batteries, DIY power bank projects
Charger Specifications: UK, US and EU standards.


Note: 1. This product includes the battery case only; it does not include 18650 lithium batteries. Customers must supply their own 18650 lithium batteries for use. 2. The BMS is only suitable for 3S 12.6V lithium batteries. It must not be used with LiFePO4 (lithium iron phosphate) batteries; misuse may result in equipment damage or safety hazards.

Package Contents:
1 x 3S7P 12V battery case