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General Minitrail Talk
Modifications
Adding a LED to an aftermarket large housing.
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<blockquote data-quote="allenp42" data-source="post: 185430" data-attributes="member: 8785"><p>It's easy enough to get close just by using 1157, 1129 (turn signal bulb) or headlight lamps. Continue to add load until the battery is discharging then find when it's charging vs. when it's not. The capacity is somewhere between these 2 points.</p><p></p><p> I normally test in increments of 2,000 RPMS (2,4,6,8), but 4k and 8k paints the picture. </p><p></p><p>I picked up an "electronic rheostat" for lack of a better term on the cheap, where I can preciesly dial up the load (increase the resistance) until battery charge/discharge current/voltage is zero. By zero, I mean the battery is not being charged or discharged. Very accurate and way over kill but it helped me find the max capacity without a lot of hassle....and time. It has a display (voltage, current and power) that I use to double check my Fluke meter. </p><p></p><p>You're also correct about battery condition. Seen this first hand. I encountered a battery that seem to be ok, but was not. It would charge up in no time but drop off in no time as well. I do know that the more healthy the battery is, the less strain it puts on the stator and Rec/Reg. Long boring story for another day.</p></blockquote><p></p>
[QUOTE="allenp42, post: 185430, member: 8785"] It's easy enough to get close just by using 1157, 1129 (turn signal bulb) or headlight lamps. Continue to add load until the battery is discharging then find when it's charging vs. when it's not. The capacity is somewhere between these 2 points. I normally test in increments of 2,000 RPMS (2,4,6,8), but 4k and 8k paints the picture. I picked up an "electronic rheostat" for lack of a better term on the cheap, where I can preciesly dial up the load (increase the resistance) until battery charge/discharge current/voltage is zero. By zero, I mean the battery is not being charged or discharged. Very accurate and way over kill but it helped me find the max capacity without a lot of hassle....and time. It has a display (voltage, current and power) that I use to double check my Fluke meter. You're also correct about battery condition. Seen this first hand. I encountered a battery that seem to be ok, but was not. It would charge up in no time but drop off in no time as well. I do know that the more healthy the battery is, the less strain it puts on the stator and Rec/Reg. Long boring story for another day. [/QUOTE]
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Forums
General Minitrail Talk
Modifications
Adding a LED to an aftermarket large housing.
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