Energizer Universal AA HR6 Rechargeable Batteries 1300mAh - 4 Pack

The Energizer Universal AA HR6 is a rechargeable nickel-metal hydride (NiMH) battery rated at 1300mAh capacity, supplied as a 4-pack pre-charged and ready to use. Each cell delivers 1.2V nominal voltage and can be recharged hundreds of times in any standard AA-compatible NiMH charger, making them a lower-cost alternative to disposable alkaline batteries over their service life.

Designed for moderate-drain devices that see regular use, these batteries suit wireless keyboards and mice, remote controls, wall clocks, digital thermometers, handheld GPS units, LED torches, and children's battery-operated toys. The 1300mAh capacity provides longer runtime between charges compared to lower-capacity NiMH cells, while the pre-charged state means they can be fitted immediately without waiting for an initial charge cycle.

The Universal range is manufactured with 7% recycled battery material, part of Energizer's commitment to reducing virgin material use in cell production. NiMH cells self-discharge over time when not in use, so the batteries benefit from a top-up charge if they have been stored for several months. A full recharge cycle typically takes 4-6 hours depending on charger output, and the cells hold charge well enough for devices that draw power intermittently rather than continuously.

Each pack contains four cells in blister packaging. The batteries weigh 90g combined and measure 80mm x 120mm x 15mm as a packaged unit. Store in a cool, dry location away from direct heat when not in use, and recycle via a battery take-back scheme once the cells no longer hold a useful charge after repeated cycling.

How many times can these batteries be recharged?

Energizer rates the Universal AA cells for hundreds of recharge cycles. Actual cycle count depends on usage pattern, charge/discharge depth, and storage conditions, but most users achieve 500-1000 cycles before capacity degrades noticeably.

Do they come pre-charged?

Yes. The batteries are pre-charged at the factory and ready to use immediately. If they have been stored for several months before purchase, a top-up charge is recommended to restore full capacity.

What charger do I need?

Any standard NiMH battery charger that accepts AA cells will work. Energizer produces dedicated chargers for this range, but third-party chargers from brands like Ansmann, Varta, or Panasonic are also compatible. Check the charger supports 1.2V NiMH cells.

Can I mix these with alkaline batteries in the same device?

No. Mixing rechargeable NiMH (1.2V) and non-rechargeable alkaline (1.5V) cells in the same device can cause uneven discharge, leakage risk, and reduced performance. Use either all rechargeable or all alkaline, never a combination.