Learn how to change batteries in the HC40 TWIST Hand Control for comfort beds with LINAK systems. Open the battery lid by sliding the battery lid downwards. You will feel it loosen and the lid can easily be removed. You can now exchange the two AAA batteries. Reattach by placing the battery lid a little below the screen and slide it upwards to fasten it. For more information about the HC40 family, please visit: www.linak.com/HC40 Read more