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Awesome Accessory Battery
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<blockquote data-quote="retiredff" data-source="post: 151177" data-attributes="member: 3210"><p>I found a site that explains amp hours. Cabela's battery is rated at 8.0 amp hours. A hummingbird 500 series draws 400 milliamps, so with my crude and maybe wrong math:</p><p></p><p>8 amp hours = 8000 milliamps (1 amp hour = 1000 milliamp)</p><p></p><p>battery runtime = 8000 / 400 = 20 hours</p><p></p><p>that battery should last 20 hours for a non color hummingbird 500 series FF/GPS. I only checked the 500 series as I don't think I need anything more expensive for my needs.</p><p></p><p>These batteries should handle a FF/GPS, LED nav/anchor lights and probably LED interior lights for a nights worth of fishing!</p><p></p><p>Not bad, plus they are light and cheap!</p><p></p><p>Anyone have experience with a Hummingbird 581i combo?</p><p></p><p>Thanks</p><p></p><p>Tony</p></blockquote><p></p>
[QUOTE="retiredff, post: 151177, member: 3210"] I found a site that explains amp hours. Cabela's battery is rated at 8.0 amp hours. A hummingbird 500 series draws 400 milliamps, so with my crude and maybe wrong math: 8 amp hours = 8000 milliamps (1 amp hour = 1000 milliamp) battery runtime = 8000 / 400 = 20 hours that battery should last 20 hours for a non color hummingbird 500 series FF/GPS. I only checked the 500 series as I don't think I need anything more expensive for my needs. These batteries should handle a FF/GPS, LED nav/anchor lights and probably LED interior lights for a nights worth of fishing! Not bad, plus they are light and cheap! Anyone have experience with a Hummingbird 581i combo? Thanks Tony [/QUOTE]
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