Lead Acid Battery Aging: Does It Happen Empty?

I recently purchased a starter battery with the code 04/02. I believe this means it was manufactured in the fourth week of 2002. Does the long storage time affect the battery's performance? It was just filled with acid today.

Regards,
mcgregg

I was just sold a starter battery, model number 04/02. I suspect this means it was produced in the 4th week of 2002. Does the long storage time damage the battery? It was filled with acid today.

Regards,
mcgregg

Yes, and no.

Yes, because it probably no longer meets the current technological standards (compared to a newly produced battery), and no, because there was hardly any or no chemical activity within the battery due to the plasticizers evaporating from the plastic casing. If we assume that it was stored without vibrations, one would likely not be able to detect any difference between it and a freshly manufactured battery of the same type.

Greetings.

Eike.

Over time, the lead plates develop a patina, which gradually reduces their capacity. A pulse charge should almost completely eliminate this effect after filling.

eike wrote:

Yes, and no. Yes, because it probably no longer meets the current technological standards (compared to a newly produced battery), and no, because there was hardly any or no chemical activity within the battery due to the plasticizers evaporating from the plastic casing. If we assume that it was stored without vibrations, one would likely not be able to detect any difference between it and a freshly manufactured battery of the same type. Greetings. Eike

.

The battery type was released two years ago and is therefore still current.

Julian wrote:

Over time, the lead plates develop a patina due to storage, which slowly reduces the capacity.

A pulse charge should almost completely eliminate this after filling.

"I'm relieved to hear that. I tested the battery with two H4 headlight bulbs. It lasted 8.5 hours until it discharged to 10.5V. That would be approximately 85Ah, while the battery is specified as having 75Ah. However, during a 20-hour discharge, the capacity is even larger. Considering that this housing (278x175x190) previously only offered 66Ah. The cold start current of 400A according to DIN is also not insignificant. However, I haven't verified that myself. The battery doesn't fit into the cooling compartment. }"

Regards,
mcgregg