Duracell Rechargeable AAA NiMH (HR03)

Rechargeable AAA cells designed for everyday use. Low self-discharge chemistry keeps them ready when you need them, while hundreds of recharge cycles help cut costs and waste.

At a glance

• Chemistry: NiMH (low self-discharge)
• Size/Code: AAA / HR03
• Voltage: 1.2 V
• Capacity: up to 900 mAh (actual runtime varies by device, load, and temperature)
• Recharge cycles: up to 400
• Charge retention: up to 80% after 12 months in storage
• Pre-charged and ready to use
• Operating temperature: -20°C to 50°C (-4°F to 122°F)
• Best for: wireless mice/keyboards, TV remotes, toys, baby monitors, small flashlights, sensors

When to choose these AAA cells

• Use if you power devices weekly or daily and can recharge conveniently.
• Use for devices with moderate, frequent drain (mice, toys, lights) where rechargeables outperform single-use cells over time.
• Avoid for rarely used emergency gear stored for years without maintenance, or for devices that explicitly require non-rechargeable 1.5 V batteries.

Note: NiMH cells are 1.2 V (vs 1.5 V alkaline). Most modern electronics work fine and may show a lower battery percentage even when plenty of runtime remains.

Estimated runtimes

Typical expectations per battery under common loads. Actual results depend on device efficiency, temperature, and cut-off voltage.

Device	Typical draw	Expected runtime
Wireless mouse	10–20 mA	45–90 hours of active use (often 2–6 weeks mixed use)
TV remote	<5 mA (intermittent)	Many months to a year+
LED headlamp (low)	80–120 mA	7–10 hours
Motorized toy	300–500 mA peaks	1.5–3 hours

Charging and care

• Use a quality NiMH charger (smart/delta-V). Do not use chargers meant for alkaline or lithium primary batteries.
• Charge-time rule of thumb: hours ≈ (capacity mAh ÷ charger mA) × 1.2. Example: 900 mAh ÷ 200 mA × 1.2 ≈ 5.4 hours.
• Avoid repeatedly deep-discharging; recharge when performance drops for longer lifespan.
• Keep cells in matched sets for devices using 2+ batteries; replace and charge them together.
• Storage: cool, dry place. Top up every 6–12 months if stored.

Compatibility notes

• Works in most AAA devices. Check your device manual if it specifies “alkaline only” or minimum 1.5 V requirements.
• Battery gauges may read lower with NiMH due to the 1.2 V nominal voltage despite stable performance under load.

Environmental and safety

• Rechargeable use can replace hundreds of single-use batteries over the product life.
• Do not short-circuit, crush, or incinerate. Keep away from fire and extreme heat.
• Recycle at an approved battery recycling location at end of life.

Technical specifications

• Type: Nickel-Metal Hydride (NiMH), low self-discharge
• Size: AAA (HR03 IEC designation)
• Voltage: 1.2 V
• Capacity: up to 900 mAh
• Dimensions: approx. 10.5 mm diameter × 44.5 mm height
• Weight: ~12–13 g per cell
• Operating temperature: -20°C to 50°C (-4°F to 122°F)
• Storage guarantee: up to 5 years

Buying tips

• 2-pack: small devices or first-time users.
• 4-pack: common household needs (remotes, mice, toys).
• 8-pack+: families or multiple high-use devices; rotate sets for always-ready spares.

FAQ

Are these batteries pre-charged?

Yes. They arrive pre-charged and ready to use.

How many times can I recharge them?

Up to 400 cycles under normal use. Actual life depends on depth of discharge, charging rate, and storage conditions.

Can I use any charger?

Use only a charger designed for NiMH rechargeable batteries. Avoid alkaline or lithium primary chargers.

Will 1.2 V NiMH work in devices that expect 1.5 V?

Often yes. Many devices run reliably on NiMH due to stable voltage under load, though some may show a lower battery reading. Check your device manual if unsure.

How should I store these batteries?

Store in a cool, dry place. For best results, top up the charge every 6–12 months.