On Order Marmitek Home Security Camera Battery Li-Polymer Battery fits Marmitek, 210, Doorphone 170 3.7V, 850mAh CS-DPH170SL $27.21 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. There can be occasions when the battery model number or the model of your device is not listed in the information below. Don't despair contact us via live... Add to cart