How long do you charge a ni-mh 1800 battery for the first time?

For the first charge of a NiMH 1800mAh battery, it is typically recommended to charge it for about 14 to 16 hours using a standard charger. This initial charge helps condition the battery and ensures it reaches its full capacity. Always refer to the manufacturer's guidelines, as charging times can vary based on the specific charger and battery model. Avoid overcharging, as it can shorten the battery's lifespan.