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Old 01-18-2013, 02:46 PM   #274
Balsta
Gnarly Adventurer
 
Joined: Feb 2008
Location: Chilly Northern Europe
Oddometer: 400
I opened up a box with a new Shorai LFX18 for my KTM 990 today. It's my second Shorai and I wanted to make sure it's ok before firing up the bike. My (about 40 US$) voltmeter said 12.9 V out of the box (ambient room temp.). I charged it with Shorai's charger and it "beeped full and ready" at 14.05 volts after less than 10 minutes. When disconnecting the charger, the battery voltage drops to 13.85 after some couple of minutes and then stays there.

I repeated the charging a couple of times and it always tells "full" at between 14.0 and 14.05 volts. The store mode charging stops when my voltmeter indicates 13.0 volts.

I am suspicios on the condition of my new Shorai since 1) the Shorai charger stops at 14.05 volts while the table above in this thread tells 14.34 volts at 100 %. For comparison, my old (almost dead) Shorai reched only 13.3-13.4 volts at full charge with the Shorai charger. Is perhaps the new Shorai already on it's way downhill??!!

Second reason for my suspicion is the very short time it takes to fully charge the battery. I have not tried measuring the voltage of the individual cells as described early in this thread.

Would appreciate any comments and if I should return the battery to the dealer before firing up my KTM.

Tonight the Shorai charger is set on store mode in my garage (a couple of degrees above freezing) and I will repeat the charging to full by tomorrow, to find out if the final voltage differs at lower ambient temperature.
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950 SE -06 with 2009 SDR 130 hp motor (but carbed...120 hp?)

Balsta screwed with this post 01-18-2013 at 02:52 PM
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