BQ2000: bq2000 / Max cell count for NiMH

Part Number:BQ2000

Hi,

Is bq2000 able to use up to only 4cell for NiMH? I believe that it can be used more than 4cell because the max charge voltage states 20V. Is my understanding correct? Actually my customer consider to use bq2000 for 6cell NiMH.

Best Regards,

Satoshi / Japan Disty