Genuine Vax ONEPWR 4.0Ah Rechargeable Lithium-Ion Battery Pack (Model BV25040) in black. Compatible with the Vax ONEPWR cordless range, this interchangeable lithium-ion battery provides reliable power and extended runtime for your compatible Vax appliances. The ONEPWR battery system is designed to work across the full Vax ONEPWR range, making it a convenient spare or replacement battery.
