I have a Strobonar 770 here that has a bad battery pack. Referring to the attached photos, the pack appears to be made up of 4 sub C cells. But look at the charger. It says 14.2 VDC. Four sub C rechargeables = 4.8V. So it would be obvious that the cells would have to contain 3- 1/3 sub C cells for a total of 14.4 volts. 1/3 sub C's do not exist that I can find. Although 1/2 Sub C does exist. That would be a total of 9.6V. Still well under the 14.2V printed on the charger. I have studied other Srobonar models where people have been happy with new battery packs made up of 4-Sub C batteries. Obviously those Strobonar models were made for a 4.8V supply. Can anybody shed light on what I have here, and how to get some batteries in it? Thank you.