| 摘要 |
A battery case hinged at the bottom is of substantially the same size as a conventional heavy-duty six-volt battery and has positive and negative terminals located at substantially the same spacing of positive and negative terminals of a conventional heavy-duty six-volt battery. The case accommodates four columns of batteries with each column accommodating a D, C and AA battery between pairs of conducting strips connected in series. In each column the C battery is located intermediate the D and AA battery. In adjacent columns, the D battery is adjacent to the AA battery. The negative and positive terminals are connected to the extreme ones of the conducting strips to develop six volts therebetween, each triad of batteries being connected in parallel between a respective pair of conducting strips. Resilient contacts attached to negative ones of the conducting strips engage the negative terminal of a respective battery and urge it toward a positive conducting strip. Each positive conducting strip has a pair of fixed contacts for engagement with the positive terminal of a C and AA battery, respectively.
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