{"id":230159,"date":"2017-10-08T10:30:37","date_gmt":"2017-10-08T08:30:37","guid":{"rendered":"https:\/\/mybroadband.co.za\/news\/?p=230159"},"modified":"2017-10-08T10:34:41","modified_gmt":"2017-10-08T08:34:41","slug":"how-much-longer-bigger-batteries-last","status":"publish","type":"post","link":"https:\/\/mybroadband.co.za\/news\/gadgets\/230159-how-much-longer-bigger-batteries-last.html","title":{"rendered":"How much longer bigger batteries last"},"content":{"rendered":"

Does a D-cell battery last twice as long as a C-cell battery, or four-times as long as a AAA?<\/p>\n

These were the office questions which inspired our latest battery test.<\/p>\n

MyBroadband recently conducted tests on numerous brands<\/strong><\/a> of batteries to determine the best-value AA battery in South Africa.<\/p>\n

Following this test, we wanted to find out the lifespans of different size batteries.<\/p>\n

Specifically, we measured how long AAA, AA, C, and D batteries from the same manufacturer would last.<\/p>\n

MyBroadband used a computerised battery analyser (CBA) to provide a controlled and accurate endurance test. The CBA connects to a PC to test batteries, providing an analysis of the results.<\/p>\n

The results<\/h3>\n

For the tests, we used a CBA IV – which is designed to test small cells and batteries.<\/p>\n

The CBA IV is capable of testing batteries at load currents from 10mA to 40,000mA. Our tests discharged the cells at a rate of 200mA to ensure accuracy.<\/p>\n

To see how long it took for a battery to go flat, we tested the time it took for each type of battery to drop below their suggested cut-off voltage limit.<\/p>\n

AAA, AA, C, and D Energizer Max alkaline batteries were used in the tests, and their “lifespans” compared.<\/p>\n

The results – as detailed in the tables below – show a notable increase in battery life relative to the increase in size of the battery.<\/p>\n

All battery tests used a initial test voltage of 1.5V.<\/p>\n

\n
\n\n\n\n\n\n\n\n
Battery<\/th>\nTime on 200mAh<\/th>\n<\/tr>\n<\/thead>\n
AAA<\/strong><\/td>\n1 hour 7 minutes<\/td>\n<\/tr>\n
AA<\/strong><\/td>\n6 hours 28 minutes<\/td>\n<\/tr>\n
C<\/strong><\/td>\n18 hours 9 minutes<\/td>\n<\/tr>\n
D<\/strong><\/td>\n36 hours 3 minutes<\/td>\n<\/tr>\n<\/tbody>\n<\/table><\/div>\n<\/div>\n

It must be noted that the Energizer Max D battery experienced a voltage fluctuation during the test, which may have been caused by extraneous environmental conditions.<\/p>\n

Its test was then stopped at 1.148V, due to the battery reaching its “double the lifespan of a C-cell battery” target.<\/p>\n

Minutes per rand<\/h3>\n

The table below shows the \u201cminutes per rand\u201d value of each battery, which provides an indication of the effective value consumers receive.<\/p>\n

The fact that different devices are only compatible with certain batteries, and that smaller batteries are lighter and more convenient, was not taken into account.<\/p>\n

Pricing from Loot<\/a><\/strong>\u00a0was used in the comparison.<\/p>\n

\n
\n\n\n\n\n\n\n\n
Battery<\/th>\nPrice per battery<\/th>\nTime on 200mAh<\/th>\nMinutes per rand<\/th>\n<\/tr>\n<\/thead>\n
AAA<\/strong><\/td>\nR17<\/td>\n1 hour 7 minutes<\/td>\n3.94<\/td>\n<\/tr>\n
AA<\/strong><\/td>\nR17<\/td>\n6 hours 28 minutes<\/td>\n22.82<\/td>\n<\/tr>\n
C<\/strong><\/td>\nR26<\/td>\n18 hours 9 minutes<\/td>\n41.88<\/td>\n<\/tr>\n
D<\/strong><\/td>\nR34<\/td>\n36 hours 3 minutes<\/td>\n63.62<\/td>\n<\/tr>\n<\/tbody>\n<\/table><\/div>\n<\/div>\n

\"Battery<\/a><\/h3>\n

Now read:\u00a0The best battery in South Africa \u2013 MyBroadband Test<\/a><\/h3>\n","protected":false},"excerpt":{"rendered":"

MyBroadband tested different battery sizes to compare how long they last.<\/p>\n","protected":false},"author":341028,"featured_media":231365,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[29],"tags":[46213,46211,35839,35],"class_list":["post-230159","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-gadgets","tag-battery-sizes","tag-battery-test","tag-energizer","tag-headline"],"_links":{"self":[{"href":"https:\/\/mybroadband.co.za\/news\/wp-json\/wp\/v2\/posts\/230159"}],"collection":[{"href":"https:\/\/mybroadband.co.za\/news\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/mybroadband.co.za\/news\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/mybroadband.co.za\/news\/wp-json\/wp\/v2\/users\/341028"}],"replies":[{"embeddable":true,"href":"https:\/\/mybroadband.co.za\/news\/wp-json\/wp\/v2\/comments?post=230159"}],"version-history":[{"count":1,"href":"https:\/\/mybroadband.co.za\/news\/wp-json\/wp\/v2\/posts\/230159\/revisions"}],"predecessor-version":[{"id":231369,"href":"https:\/\/mybroadband.co.za\/news\/wp-json\/wp\/v2\/posts\/230159\/revisions\/231369"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/mybroadband.co.za\/news\/wp-json\/wp\/v2\/media\/231365"}],"wp:attachment":[{"href":"https:\/\/mybroadband.co.za\/news\/wp-json\/wp\/v2\/media?parent=230159"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/mybroadband.co.za\/news\/wp-json\/wp\/v2\/categories?post=230159"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/mybroadband.co.za\/news\/wp-json\/wp\/v2\/tags?post=230159"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}