Replacement battery fits 5 Carewell compatible models. Specifications: 5200mAh, 14.4V, Li-ion. Compatible with: ECG-1112, ECG-1112L, Kelly ECG-1112, Kelly ECG-1112L, Kelly ECG-1201. Replaces: Carewell 88889260. Carewell replacement battery designed for Medical devices. Ensures your device stays powered through regular use.