
A simple test rig was developed to measure the capacity of the lead-acid gel-electrolyte batteries used to power wheelchairs. Results of 166 tests revealed a wide scatter of battery life with different users and also showed that, in many cases, the two batteries used in a wheelchair became unequal in charge capacity after some time in use. It is recommended that pairs of batteries should be charged in series to overcome this problem.
Electric Power Supplies, Wheelchairs, Materials Testing, Humans
Electric Power Supplies, Wheelchairs, Materials Testing, Humans
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