{"id":413,"date":"2013-05-25T19:04:41","date_gmt":"2013-05-25T18:04:41","guid":{"rendered":"http:\/\/tobbe.com\/wordpress\/?p=413"},"modified":"2013-08-24T14:45:49","modified_gmt":"2013-08-24T13:45:49","slug":"new-battery-pack-for-the-gavin-mini","status":"publish","type":"post","link":"http:\/\/tobbe.com\/wordpress\/?p=413","title":{"rendered":"Replacement battery pack for the Gavin Mini DPV"},"content":{"rendered":"

NI-MH batteries are quite sensitive to both exterme heat and cold. I left the battery pack for my underwater scooter in the garage during the winter. I think that is the reason why it never reaches full voltage during charge. I ordered 20 Tenergy F Size 1.2 V 13000mAh NiMH cells from http:\/\/www.all-battery.com\/. It cost me about $260 + shipping and local tax.
\nA ready to use battery pack costs about $800 so you can save some bucks if you assemble your own.
\nThe new battery pack is about 2.2 kg lighter than the original so i need to add some weights before diving.<\/p>\n

\"I<\/a>

I used PVC pipes and hot glue to make a stable pack
The batteries came with soldering tabs. However i found that i needed 40Amp heavy duty soldering bars instead.<\/p><\/div>\n

\"Burn<\/a>

Burn testing the battery pack with two 3 ohm 300W resistors to simulate the Scooter.
50 minutes burn time and still over 20V<\/p><\/div>\n

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\"The<\/a>

The battery pack is ready and charged<\/p><\/div>\n

\"Gavin<\/a>

Gavin Mini DPVs – Time for a dive<\/p><\/div>\n","protected":false},"excerpt":{"rendered":"

NI-MH batteries are quite sensitive to both exterme heat and cold. I left the battery pack for my underwater scooter in the garage during the winter. I think that is the reason why it never reaches full voltage during charge. I ordered 20 Tenergy F Size 1.2 V 13000mAh NiMH cells from http:\/\/www.all-battery.com\/. It cost […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"ngg_post_thumbnail":0,"footnotes":""},"categories":[9,4],"tags":[],"class_list":["post-413","post","type-post","status-publish","format-standard","hentry","category-diving-gear","category-hillbillybackyard-projects"],"_links":{"self":[{"href":"http:\/\/tobbe.com\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/413","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/tobbe.com\/wordpress\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/tobbe.com\/wordpress\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/tobbe.com\/wordpress\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/tobbe.com\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=413"}],"version-history":[{"count":17,"href":"http:\/\/tobbe.com\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/413\/revisions"}],"predecessor-version":[{"id":509,"href":"http:\/\/tobbe.com\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/413\/revisions\/509"}],"wp:attachment":[{"href":"http:\/\/tobbe.com\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=413"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/tobbe.com\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=413"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/tobbe.com\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=413"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}