Duracell D HR20 Rechargeable Batteries 3000mAh NiMH (2 Pack)

Duracell D HR20 rechargeable batteries are 3000mAh NiMH cells supplied in a 2-pack, pre-charged and ready to use on arrival. Each battery can be recharged hundreds of times in any standard NiMH charger, making them a cost-effective alternative to single-use alkaline D cells for high-drain devices like torches, portable radios, and motor-driven toys.

Designed for devices that run through batteries quickly, the 3000mAh capacity provides extended runtime between charges compared to lower-capacity rechargeables. The cells hold their charge for up to 12 months when stored unused, so they remain ready when you need them without requiring a top-up charge before every use. This makes them practical for emergency torches, camping equipment, and seasonal devices that sit idle between uses.

The D cell format (34mm diameter, 61mm height per cell) fits standard D battery compartments in torches, radios, cassette players, and large remote-control toys. Unused cells are guaranteed to last 5 years in storage, and the NiMH chemistry contains no cadmium, making them a lower environmental impact choice than older NiCd rechargeables. The batteries operate at 1.2V nominal voltage, which is compatible with devices rated for 1.5V alkaline D cells.

How many times can these batteries be recharged?

Duracell rates these D HR20 cells for hundreds of recharge cycles. The exact number depends on how deeply you discharge them before recharging and the charger used, but typical usage in torches and radios will achieve 300-500 cycles before capacity degrades noticeably.

Do they arrive charged or do I need to charge them first?

The batteries come pre-charged from Duracell and can be used immediately. They hold approximately 70-80% of their rated capacity when packed, which is sufficient for most devices straight out of the packaging.

What charger do I need?

Any NiMH battery charger that accepts D cells will work. Duracell makes dedicated chargers for their rechargeable range, but third-party NiMH chargers from brands like Ansmann, Varta, and Energizer are also compatible. Avoid using NiCd-only chargers, as they may not provide the correct charging profile.

How long do they hold their charge when not in use?

When stored in a cool, dry place, the batteries retain usable charge for up to 12 months. After a year of storage, they may need a top-up charge before use, but they will not have self-discharged completely like older rechargeable chemistries.