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Check out my new solution for charging the Spark in the field
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<blockquote data-quote="giac" data-source="post: 42620" data-attributes="member: 3855"><p>Not to spoil the fun (sorry), but have you tried to charge "all 3 of your batteries 5 times over"? I bet it won't work. Reason is simple: the 24000 mAh are at 3.7V, while spark batteries are at 11.4V. A better measure is the energy: your power bank is rated as 88 Wh, a spark battery at about 17. This gives 5 charges in total (single battery) assuming a pretty high efficiency, which I'm not sure you'll have if you use the account outlet and the AC charger (you go from 14.8 V internal to 110 outlet to 11.8 with the charger... A lot of conversions).</p><p>Other than that, seems a pretty good solution for certain scenarios.</p></blockquote><p></p>
[QUOTE="giac, post: 42620, member: 3855"] Not to spoil the fun (sorry), but have you tried to charge "all 3 of your batteries 5 times over"? I bet it won't work. Reason is simple: the 24000 mAh are at 3.7V, while spark batteries are at 11.4V. A better measure is the energy: your power bank is rated as 88 Wh, a spark battery at about 17. This gives 5 charges in total (single battery) assuming a pretty high efficiency, which I'm not sure you'll have if you use the account outlet and the AC charger (you go from 14.8 V internal to 110 outlet to 11.8 with the charger... A lot of conversions). Other than that, seems a pretty good solution for certain scenarios. [/QUOTE]
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Check out my new solution for charging the Spark in the field