{"id":72792,"date":"2022-06-16T04:15:15","date_gmt":"2022-06-16T11:15:15","guid":{"rendered":"https:\/\/lenpenzo.com\/blog\/?p=72792"},"modified":"2022-06-17T17:27:24","modified_gmt":"2022-06-18T00:27:24","slug":"grandfather-says-testing-an-experimental-battery-fire-container","status":"publish","type":"post","link":"https:\/\/lenpenzo.com\/blog\/id72792-grandfather-says-testing-an-experimental-battery-fire-container.html","title":{"rendered":"Grandfather Says: Testing an Experimental Battery Fire Container"},"content":{"rendered":"

\"\"<\/a><\/p>\n

Grandmother suffered vascular dementia in her last years and needed constant attendance. During those years, Grandfather (who was an inveterate model airplane flier earlier in life) undertook to treat some of the problems modelers were facing with their high-energy-density lithium polymer (LiPo) batteries, use in their radio control electronics and in their propulsion motors.<\/p>\n

Lithium polymer batteries are absolutely unforgiving of over-voltage charging; Also physical damage, quite common in model airplane crashes. Resultant battery fires are explosively violent.<\/p>\n

One of the tests Grandfather did of a prospective LiPo fire container can be found here<\/a>.<\/p>\n

And here<\/a> is a description of a method for avoiding overcharging.<\/p>\n

The conclusion that LiPo fires could not be safely contained by modelers was widely accepted, but the parallel charging of individual cells took awhile. The manufacturers of battery packs eventually installed taps between the series-connected cells and adapted their chargers for parallel charging them.<\/p>\n

The problems presented were widespread: Laptop computer and cell phone battery fires were widely publicized. Problems with shipping lithium batteries in commercial aircraft were subjects of FAA regulation and Boeing had major engineering expenditures on , among other things, a heavy containment box for the 787 Dreamliner battery.<\/p>\n

Pictures of the test of that box were published at the time, but Grandfather cannot find them now: They showed the box bloated by internal pressure, but it did not rupture.<\/p>\n

***<\/p>\n

About the Author: RD Blakeslee is a nonagenarian in West Virginia who built his net worth by only investing in that which can be enjoyed during acquisition and throughout life, as opposed to papers in a drawer, like stocks and bonds. You can read more about him here<\/a>.<\/em><\/p>\n

Original oil painting by: Grandfather’s wife<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"

Grandmother suffered vascular dementia in her last years and needed constant attendance. During those years, Grandfather (who was an inveterate model airplane flier earlier in life) undertook to treat some of the problems modelers were facing with their high-energy-density lithium polymer (LiPo) batteries, use in their radio control electronics and in their propulsion motors. Lithium […]<\/p>\n","protected":false},"author":150,"featured_media":52358,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_mo_disable_npp":"","pmpro_default_level":"","_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"_genesis_hide_title":false,"_genesis_hide_breadcrumbs":false,"_genesis_hide_singular_image":false,"_genesis_hide_footer_widgets":false,"_genesis_custom_body_class":"","_genesis_custom_post_class":"","_genesis_layout":"","footnotes":""},"categories":[490,469],"tags":[],"class_list":{"0":"post-72792","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-grandfather-says","8":"category-technology","9":"pmpro-has-access","10":"entry"},"yoast_head":"\nGrandfather Says: Testing an Experimental Battery Fire Container<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/lenpenzo.com\/blog\/id72792-grandfather-says-testing-an-experimental-battery-fire-container.html\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Grandfather Says: Testing an Experimental Battery Fire Container\" \/>\n<meta property=\"og:description\" content=\"Grandmother suffered vascular dementia in her last years and needed constant attendance. During those years, Grandfather (who was an inveterate model airplane flier earlier in life) undertook to treat some of the problems modelers were facing with their high-energy-density lithium polymer (LiPo) batteries, use in their radio control electronics and in their propulsion motors. 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