EverReady B103

The EverReady B103 in Batrymax livery provide 1.5 volt LT and 90 volt HT through a 4 pin connector.

       B103 back and bottom

      B103 top and front

This has had to be split into six sections to enable it to be printed on a standard A4 colour printer. The sections are numbered 1 to 6 from top left to bottom right. Sections 2 and 5 are the full width of the battery and should be printed out so that they are 8 inches wide. Sections 1,3,4 and 6 should be printed out with the same scaling factor. These sections have generous overlap and should be stuck onto the insides of their adjacent sections. Make up a back and bottom then a top and front then the flap at the top of the back and bottom section should be glued to the top of the top and front section (the back and bottom as shown above will need to be rotated through 180 degrees to achieve this).

Right click your mouse on the required section and select "Print Target" or save to your computer by selecting "Save Target As..." then print it out. Use something like Paint Shop to resize the image so that when completed the battery forms a cuboid with sides 8"x5 7/16"x3 1/8" (or 203mm x 142mm x 79mm).  Print onto paper first to check the size then print it onto the thickest card your printer can handle, cut around the whole shape, crease where necessary and glue all but the top flaps together. There is plenty of room inside for 10x9 volt PP3 batteries which will fit neatly with the help of a bit of expanded polystyrene padding. If you solder the battery connections together then take care as the connections only have point contacts inside and are easily damaged.

Be very careful when handling this battery pack as 90 volts can pack a powerful shock, as I found out. Also if 9 volt alkaline cells are used, due to their low internal resistance shorting the 90 volts together can generate currents of several amps which can generate energies of several hundred watts and is therefore a potential fire hazard. You have been warned!!!!