Check engine + battery light

[ric27]

 After some idle time while I recovered from back surgery (3 months) my 06 RK started showing the check engine and battery light off and on on short rides I took. On later rides It seamed to go away then came right back.

the run down of symptoms; on starting check engine light comes on for a few seconds then goes out. After a short time a mile or two the check engine light and battery light comes on and stays on. I checked the codes and got brought up PO562 which indicates low battery voltage. I did replace the battery that tested OK but close to being shot.

This morning I road out from the house to test it out. Same ck engine light after start went out after 5sec. and got a little further down the road about 6 mi. before the chek eng and bat lite came on again to stay. when I cot back to the house after about 10 miles or so the battery that was fully charged at the start was down to 12.34 volts.
any help appreciated
R

[slypig]

Check battery voltage with the engine running above idle  2,000 RPM or so.  Should be showing about 13-14 volts if it's getting a charge.  Also check all battery cable connections including the starter and ground.

Have you had to charge the battery to get the bike started?

Sly

[Tynker]

When my Heritage did that, the stator and regulator were done. It also took out my battery, The stator was grounded, and was charging 19 volts. All done under warranty.

[ric27]

Check battery voltage with the engine running above idle  2,000 RPM or so.  Should be showing about 13-14 volts if it's getting a charge.  Also check all battery cable connections including the starter and ground.

Have you had to charge the battery to get the bike started?

Sly

OK I tried the battery test with motor running from high idle to about 3500 gauge stayed @ 12.4.   

Engine off battery reads 12.8

Have not had to charge battery to start but have been keeping on tender most all the time.

[slypig]

That's a good indication that there is something wrong with the charging system....stator/regulator/associated wiring.

Sly

[jam65]

How old is the battery?

[HarleyHiwayMan]

When I had the 'check engine light and battery light comes on and stays on' with my Sporty 48, it was the voltage regulator.