Long term nicad battery storage ?

[RadioSouth]

Anyone know the best way to store NiCad packs ? Going to be out of town about 3 mos.+ and house will be kept around 85 deg.
Fully charged, half charged ? In fridge ?

[escomm]

While capacity loss during a battery's life cannot be eliminated, simple guidelines minimize the effect:

* Keep batteries in a cool and dry storage area. Refrigeration is recommended but freezers should be avoided. When refrigerated, the battery should be placed in a plastic bag to protect against condensation
* Do not fully charge lithium and nickel-based batteries before storage. Keep them partially charged and apply a full charge before use. Store lithium-ion at about 40% state-of-charge (3.75-3.80V/cell open terminal). Lead-acid batteries must be stored fully charged.
* Do not store lithium-ion fully depleted. If empty, charge for about 30 minutes before storage. Self-discharge on a depleted battery may cause the protection circuit to trip, preventing a recharge.
* Do not stockpile lithium-ion batteries; avoid buying dated stock, even if offered at a reduced price. Observe the manufacturing date, if available.
* Never leave a nickel-based battery sitting on a charger for more than a few days. Prolonged trickle charge causes crystalline formation (memory).
* Always store a lead acid battery in full-charge condition. Observe the open terminal voltage and recharge the battery every 6 months or as recommended by the manufacturer.

http://batteryuniversity.com/partone-19.htm

[Will]

* Keep batteries in a cool and dry storage area. Refrigeration is recommended but freezers should be avoided. When refrigerated, the battery should be placed in a plastic bag to protect against condensation..

I will second this from many years in the business.

Will

[RadioSouth]

Very good, thank you Gentelmen !