Based on this product's specifications, here are some alternatives and similar models
Rechargeable Li-Ion Battery Varo 16V 1.3Ah for POWC1061 POWERPLUS C
Summary description:
Replacement rechargeable lithium-ion battery by Varo with 16V nominal voltage and 1.3Ah capacity, compatible with POWC1061 POWERPLUS C. Designed to restore or extend runtime of cordless tools that accept this battery type. Provides portable power for light to medium-duty jobs, enabling uninterrupted work and quick swap-in replacement when original battery is depleted.