Thinking about an HP-41CL
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07-28-2016, 04:41 PM
Post: #46
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RE: Thinking about an HP-41CL
A few last comments:
Here's the GP50NH dartasheet: http://datasheet.octopart.com/GP50NH-GP-...549593.pdf It should be noted that to fast charge the cells the BC-700 needs to have the charging current changed from the default of 200mA, otherwise the - delta T end-of-charge detection circuit may not work as intended. A couple of questions. The BC-700 also detects end-of-charge by temperature, and the datasheet shows a DT/dt spec. Will the BC-700 end the charge cycle properly if the cells are charged at 200mA rather than fast-charging at 250 to 500mA? Yesterday I received some 2200mAH AA flat top cells for use in Spice calcs. (No, they won't make contact with the charger without a washer.) Initial research turned up a 2200mAH Sub-C cell with a normal charge current of 220mA. Without buying the higher current BC-1000, what's the best charge current? It would be nice if someone wrote an article about smart chargers and high-capacity cells. Dave |
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