D Size Extra HD battery (Come in a 2 pack, cost ea)

R20 D Size Zinc Chloride Battery 1.5V

Extra heavy duty D-Size Battery.  Plenty of power. R20 D Size Zinc Chloride Battery 1.5V each. "Voltomic" brand.

Not rechargeable.  These are supplied in a 2-pack but the price is per each battery. Order 2 batteries and you get one pack of 2 batteries, not 2 packs of 2 batteries.

The loudhailers are supplied with 8 of these pre-installed, included in the price. You only need to buy these if you want some spare batteries on hand.

If you order qty 8 batteries you will get 8 batteries (4 packs of 2). We do the maths so you don't have to!