Battery Shelf life & Storage

Most manufacturers set up date coding parameters & guidelines like production and expiry dates that are usually printed on the battery or its packaging. Warranties depend on the age of the battery concerned and its shelf & useable life periods.

Battery Chemistry Shelf Life / Storage Life
Alkaline Between 5-7 years from date of manufacture (expiry date usually on packaging and/or battery)
Carbon Zinc 2-3 years from date of manufacture (expiry date usually on packaging and/or battery)
Lithium Manganese Dioxide
– Cylindrical & 9V Type
Up to 10 years form date of manufacture (expiry date usually on packaging and/or battery).

< 1% self-discharge per year at room temperature.
Lithium Manganese Dioxide
- Coin Cell
Between 5-7 years from date of manufacture (expiry date usually on packaging and/or battery).
Lithium Sulfur Dioxide Up to 10 years form date of manufacture (expiry date usually on packaging and/or battery).
Lithium Thionyl Chloride Up to 10 years form date of manufacture (expiry date usually on packaging and/or battery).
Lithium-Ion (Li-Ion) LMO
Lithium Manganese Oxide
5% self-discharge per month at room temperature (usually stored with 30-40% sate of charge).

Irreversible capacity loss if stored for > 12 months.
Lithium-Ion (Li-Ion) LCO
Lithium Cobalt Oxide
Between 1% to 5% self-discharge per month at room temperature (usually stored with 30-40% sate of charge).

Irreversible capacity loss if stored for > 12 months.

Lithium-Ion (Li-Ion) NCA
Lithium Nickel Cobalt Aluminium

Between 2% to 10% self-discharge per month at room temperature (usually stored with 30-40% sate of charge).

Irreversible capacity loss if stored for > 12 months.
Lithium-Ion (Li-Ion) NMC Lithium Nickel Manganese Cobalt
1% self-discharge per month at room temperature (usually stored with 30-40% sate of charge).

Irreversible capacity loss if stored for > 12 months.
Lithium Titanate LTO
Between 2% to 10% self-discharge per month at room temperature (usually stored with 30-40% sate of charge).

Irreversible capacity loss if stored for > 12 months.
Lithium Iron Phosphate (LiFePO4/LFP)
Less than 1% self-discharge per month at room temperature (usually stored with 30-40% sate of charge).

Irreversible capacity loss if stored for > 12 months.
Lithium-Ion Polymer (SLPB) 0.5% self-discharge per day at room temperature (usually stored with 40% sate of charge).

Irreversible capacity loss if stored for > 12 months.
Mercury Oxide 3-4 years from date of manufacture (expiry date usually on packaging and/or battery).
Nickel Cadmium (NiCd)
– Cylindrical & prismatic
1%-2% self-discharge per day at room temperature, but will fully recover after few charge cycles. Indefinite life but Practical shelf life is 5 years.

After 6 months storage should be primed before use.
Nickel Metal Hydride (NiMH)
- Button Cell
< 20% self-discharge per month at room temperature.

Indefinite life but Practical shelf life is 5 years.
Nickel Metal Hydride (NiMH)
– Cylindrical & Prismatic
Up to 2% self-discharge per day at room temperature. Indefinite life but Practical shelf life is 5 years.

After 6 months storage should be primed before use.
Rechargeable Alkaline 4-5 years from date of manufacture (expiry date usually on packaging and/or battery).
Sealed Lead Batteries (AGM/GEL) 1 year without charging. Charging every 6 months will extend shelf life. Production date code on battery. Do not leave in discharged state. Click on link for handling & storage information. Technical - OEM Information\Panasonic SLA Handling Precaution=s.pdf
Sealed Lead Tin Batteries
Hawker Cyclon, Monobloc & Genesis
2 years without charging. Charging every 24 months will extend shelf life. Production date code on battery. Do not leave in discharged state. Click on link for handling & storage information. Technical - OEM Information\Hawker Cyclon Selection Guide.pdf
Silver Oxide 2-3 years from date of manufacture (expiry date usually on packaging and/or battery).
Zinc-Air 2 years from date of manufacture if kept in sealed packaging. Once air activation seal removed (expiry date usually on packaging and/or battery) use immediately. Keep out of warm temperatures as speeds up air activation process even with seal.
Zinc-Chloride 2-3 years from date of manufacture (expiry date usually on packaging and/or battery).
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