CTA Digital DBNB2LH Lithiumion Battery CTA DIGITAL DBNB2LH LithiumIon BatteryReplacement for the DC1HK24. The CTA Digital DBNB2LH rechargeable lithiumion battery is a replacement for Canon NB2L and NB2LH LiIon rechargeable batteries. This ultra highpower capacity battery features lithium technology, which ensures maximum battery life and maximum power. The battery features no memory effect, so you can recharge partiallydrained batteries without reducing performance.