Over time the battery pack for your cordless Ergorapido vacuum cleaner can lose its ability to hold its charge. Fortunately, you don\'t have to buy a new cleaner, you can simply replace the battery pack with this new Li-Ion battery part with voltage of 14. 4 V. Consists of 3 batteries of 4. 8V each. Fits CX7-2-30DB, CX7-2-30BP, CX7-2-30GM, CX7-2-30GM, CX7-2-30HO, CX7-2-HO2, CX7-30IW, CX7-30BM, CX7-30IW, AG3101, AG3103, AG3105, AG3106. Repair of electric appliances should be done only by skilled persons. Check compatibility before purchase.