On Order Bang & Olufsen Speaker Battery Li-ion Battery Fits Bang & Olufsen, Beoplay A1, Bang & Olufsen 7.4v, 2600mah CS-BNA100SL $39.63 All our batteries are brand new, The battery is an equivalent battery to the manufacturers as shown below. They are made with premium Lithium Ion cells and are rated as shown in the specifications. Finding the correct battery for your device can be difficult. There are a huge range of models and part numbers and it can be confusing. Believe us when we... Add to cart