This is a replacement SLA battery for PS-4100, LW-2FM10, DJW4- 10.0, BP10-4-F1, WP10-4 and 2FM10. We guarantee the best price and 100% compatibility with your Expocell P204/100 model. The replacement sla batteries also include a minimum of one year warranty. Popular applications for our sla batteries are UPS, emergency lighting, security, fire and burglar alarms, scooters, wheelchairs, medical, and other.