<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" /> <title>CUCC Expedition Handbook: Drill Battery Charging</title> <link rel="stylesheet" type="text/css" href="../css/main2.css" /> </head> <body> <h2 id="tophead">CUCC Expedition Handbook</h2> <h1>Drill Battery Charging</h1> <h2>Instructions for charging</h3> 0) <li>If the battery has insulation tape on it (red or earth) it won't charge on the Makita charger (feel free to confirm this). Go to <a href="#RCcharge">RC charger</a>.</li> <h3>Using Makita charger</h3> <ol> <li>Make sure charger is powered (flashing green LED).</li> <li>Plug batt into Makita charger. It should start charging.</li> <li>Look at the LEDs for status - the legend is printed on the charger. If it flashes 'broken battery' (flashing red and gren LED) at you after a few seconds, use the yellow Pro-power RC charger instead.</li> <li>Eventually it should show '100%' (steady green LED) (in about 1 hour max). You are done.</li> </ol> <h3 id="RCcharge">Using Pro-Power (or Accucell 6) RC charger</h3> <ol> <li>Make sure charger is powered (display lit up)</li> <li>Connect charger to battery (either hardboard adaptor or empty Makita base adaptor). Check polarity is correct with hardboard adaptor.</li> <li>Check display says 'Lion' or 'Lipo' and '14.4V' and '3A' and 'CHARGE'. Hold down 'start/enter' button (on right). It will do a battery check.</li> <li>If it shows '4' as the number of cells, then press 'start/enter' again. Charging will start (fan comes on, display changes). If it shows anything else like 'polarity reversed' or 'connection break' then fix the connection to the battery.</li> <li>Once it beeps and says 'FULL' (flashing) then you are done (should be less than 2 hours). Display shows number of mAh put in in bottom right. Should be a number like 250 for each hole drilled (between 50 and 2900 depending how discharged it was).</li> </ol> <h3>Can I tell if a battery is already charged?</h3> <p>Simplest it try to charge it again and find that it says it is done in a couple of minutes. This may waste a 'life' on batteries that still work on the Makita charger. Checking it on the RC charger will not waste a life. It will quickly rise to 16.4V, and the current drop to 0.1A or so. That indicates a full pack. It will tell you so after a while (few mins?). </p> <h3>What sort of batteries are they</h3> The drill batts are 4S2P 14.4V lithium ion packs (8 18650 cells: 4 in series, each being a parallel pair). This means that they are charged as 4-cell packs. They can be charged at up to 3A rate. </body> </html>