VOLTCRAFT Mono (D) Li-Ion Rechargeable Battery 6000 mAh 1.5 V, 2-Pack with USB-C Charging (VC-17275580)

Unlike standard D-cell batteries that lose voltage as they discharge, these VOLTCRAFT Mono (D) Li-Ion cells deliver a constant 1.5 V output from full charge to empty. Each battery integrates a USB-C port, so you can recharge them anywhere without a dedicated charger. The 6000 mAh capacity and up to 1200 charge cycles make them a cost-effective replacement for disposable batteries in high-drain devices like flashlights, toys, and portable radios.

Highlights

• Constant 1.5 V output ensures consistent performance until fully depleted
• Integrated USB-C charging port on each battery – no separate charger needed
• High 6000 mAh capacity for long runtime in demanding devices
• Up to 1200 charge cycles reduce waste and long-term cost
• Built-in protection against overcharge, over-discharge, and short circuit
• LED indicator shows charging status at a glance

In daily use

Pop these into any device that takes D batteries and enjoy reliable power without the voltage sag typical of NiMH or alkaline cells. When they run low, simply plug a USB-C cable into the top of each battery – the LED glows red while charging and turns green when full. A full charge takes about 6 hours with a 1 A USB power source. The stable voltage is especially beneficial for motorised toys, high-power torches, and medical devices that require consistent output.

Full specifications

• Battery size: D (Mono)
• Chemistry: Lithium-Ion (Li-Ion)
• Nominal voltage: 1.5 V
• Capacity: 6000 mAh
• Energy content: 9 Wh per battery
• Rechargeable: Yes
• Charging port: USB-C (integrated)
• Max charging current: 1 A
• Charging time: approx. 6 hours
• Cycle life: up to 1200 cycles
• Constant voltage output: Yes
• Protection circuit: overcharge, over-discharge, short-circuit
• LED charging indicator: Yes
• Max discharge current: 3 A
• Operating temperature: -20 to +60 °C
• Quantity: 2 batteries per pack

Final note

For anyone tired of buying and discarding D cells, this VOLTCRAFT 2-pack offers a practical, eco-friendly solution with the convenience of USB-C charging.