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Update charging info for 2018, adding balance charger info.

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Wookey 2018-07-06 02:10:38 +01:00
parent 8ea4afed9f
commit 721a37d6c1
1 changed files with 52 additions and 16 deletions
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handbook/charging.html
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@ -12,13 +12,23 @@
<h2>Instructions for charging</h3>
0) <li>If the battery has insulation tape on it (red, green, or earth) it won't
charge on the Makita standard charger and the Balance/RC charger
should be used. All batteries will charge on the RC charger, but not
as fast as on the Makita charger. Go to <a href="#RCcharge">RC charger</a>.</li>
0) <li>If a battery has green insulation tape on it it has been
modified by us and will not charge on a Makita standard charger. It
must be charged on the balance chargers (or RC chargers). Untaped
(standard) batteries will not charge on the balance chargers, so must
be charged on the Makita chargers (or RC charger). All batteries will
charge on the RC chargers, but not as fast as on the Makita
charger. Go to <a href="#RCcharge">RC charger</a>.</li>
<p>New for 2018 is varying battery capacity. We have 3Ah, 4Ah and 5Ah
packs. Bigger packs will take longer to charge from empty. The
capacity is on the cell label next to the yellow connector.</p>
<h3>Using Makita charger</h3>
<p>This is blue charger with 3 LEDs, and diagrammatic charging info on RH side. CHarges at up to 100W.</p>
<ol>
<li>Make sure charger is powered (flashing green LED).</li>
@ -32,7 +42,30 @@ as fast as on the Makita charger. Go to <a href="#RCcharge">RC charger</a>.</li>
hour max). You are done.</li>
</ol>
<h3 id="RCcharge">Using Pro-Peak (or Accucell 6) RC charger</h3>
<h3>Using Balance charger</h3>
<p>This is the set of 3 (2 half-width) chargers made from old Makita chargers. They have a set of 4 LEDs. (The full-width one only has 1 LED in 2018). Charges at 40W.</p>
<ol>
<li>Make sure charger is powered (flashing green LEDs).</li>
<li>Plug batt into charger. After a few seconds it should start charging.</li>
<li>Look at the LEDs for status - the legend is printed on the RH end charger. Steady red for bulk charging to 80%. Steady orange for last 20% charging. Steady green for finished. If it flashes red and beeps (repeated 5 times) something is wrong - see table. If you get an 'undervoltage' reading, use an RC charger instead to get the charging started.</li>
<li>Eventually it should show '100%' (steady green LEDs). (1hr 50 max possible charge time). You are done.</li>
</ol>
<h3 id="RCcharge">Using Accucell 6 RC charger</h3>
<p>This is black all-purpose charger with blue LCD display. CHarges at up to 50W</p>
<p>The Yellow Propeak chargers do the same job, and insturcuctions are
similar, but have no fan, no backlit display, and if pack is low
voltage will charge at C/10 (10% of normal) until voltage rises
sufficiently. Ensure that charge rate is set to 4000mA otherwise
charging will be very slow. Charges at up to 50W (5W in C/10 gnetle start).</p>
<ol>
<li>Make sure charger is powered (display lit up)</li>
@ -55,19 +88,21 @@ action. Find a battery expert - don't just use the charger anyway.</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>
(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 (1-5 mins).
</p>
in a couple of minutes (Up to 4 mins on the balance chargers). 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 (1-5
mins).</p>
<h3>What sort of batteries are they</h3>
@ -97,10 +132,11 @@ board can fix this (or new software if we knew how to nobble it).</p>
<p>Such batteries are normally still fine and charge on a sensible (RC
- Radio Control, because RC people are the main market for these
chargers) charger, possible after a balance charge to get the cells in
the pack in sync again. Expo has a couple of these and will be getting
more. Unfortunataly Makita don't build the 14.4V packs with balance
connections to the cells, so the PCB has to be replaced to make this
work easily for expo, which is the plan for 2018.</p>
the pack in sync again. Expo has a couple of these (Yellow Pro-power
Prodigy II). Unfortunataly Makita don't build the 14.4V packs with
balance connections to the cells, so the PCB has to be replaced to
make this work easily for expo. For 2018 this was done for 7 of our
packs, and 3 automatic balance chargers built.</p>
<p>Note that the drills have no battery-voltage monitoring at all, and the
monitoring circuit is bypassed when conected to the drill (the charger