2pcs D Battery Holder 2 Slot with Wires, Cover, ON/OFF Switch for DIY Projects

Durable & Safe: Made of impact-resistant, flame-retardant plastic, this 2-slot D battery holder ensures reliable protection for your cells, lightweight and easy to handle. Easy Wiring: Comes with pre-attached red and black wire leads, clearly marked for polarity, plus an integrated ON/OFF switch for quick circuit control and simple installation. Modular Design: Snap-fit interlocking tabs on top and sides allow multiple holders to connect securely, enabling quick series (higher voltage) or parallel (higher current) configurations. Versatile Use: Ideal for DIY electronics, hobby projects, school labs, and custom power supplies; works with standard 1.5V D size batteries (output 3V for 2 cells). Compact & Practical: Includes a back cover to protect batteries from dust and short circuits; compact footprint fits easily into enclosures, models, or portable devices.