I have homelite lawn mover (ut13126) when I measure bat 24v(also white&black 24v)when I press the switch the blade spin very slow. (green&white 2.4v) the indigater red light. how to fix problem?

I have a Green Works 40V which came with two Rechargeable batteries. I always keep one fully charged. The charge can dictate the power you are getting. Fully charge your battery. If that is not the cause, replace it. Examine the under side of the mover, with the battery REMOVED. Make certain there isn't anything in the way of the blades moving freely. Good luck.

im not exactly familiar with this model , but a few of these new fangled lawn mowers have come my way in the past , what I've found on most of them there susceptible to the same problems the power mower have , they have safety switches and hold handles that do malfunction , also they do have battery's and those are susceptible to bad dirty connections

Your rechargable battery may no longer accept a full charge if it is old.. Get it tested at a garage.
Possibly the battery is OK, but the lawnmower blades are too stiff to turn and the battery soon gives up. Check blades can rotate freely, and have not got entwined grass or string etc wound around the shaft

The batteries are defective in this unit. It should be returned to the dealer that you purchased it from and get exchanged, or your money back. Another way to test this mower is to charge the batteries fully, then test them. If they are truly fully charged, run the mower until it slows down, and test the batteries again. If they are still charged, (unlikely) then the problem is in the motor itself and still should be returned.

the inner shaft could have broken, which is the case a lot when using the blade vs the string remove the shaft from the motor, and spin the inner rod and see if the blade turns, if it does check the end of the rod and see if its damaged in anyway , if the blade doesn't spin, the shaft has broken and will need replacement

+24 VDC power is failed. Status Code 102-319 is displayed after 116-325 is displayed.
+24V LVPS is failed. Perform following:
Remove Rear Cover (REP 14.2).
Remove cover from +24V LVPS (PL 9.1).
Disconnect P502 on +24V LVPS (Figure 1).
Check that power is switched off. Measure resistance of fuse on +24V LVPS. Resistance is 1
ohm or less.
if no Replace +24V LVPS (PL 9.1).
if yes Switch on the power. Measure the AC voltage between the white and black wires in P2 on the
+24 VDC. 110 or 220 VAC is measured.

Hello Arthur,

For 220vac, you will have 2 blacks or Red and Black (line). The white is neutral, green / bare is your ground.

If you look closely at the plug, the contacts for the line will have either black screws, or be labeled as L1 and L2. Neutral will have a white or silver screw, may be labeled as N, and the ground will be green or silver, labeled as Ground, Gnd, E, or Earth.

The best bet is to work on the deck with it removed from the tractor. You may find the bearings are out in one of the spindles. Quite often someone hits something and the deck housing is bent where the spindle bolts to it. Use a tape measure and measure the distance from the deck to the blade. Compare the two spindles (3 if it's 3 blades) . You'll find one spindle is tilted so that it is not 90 degree to the deck. What I do is once I've located the offending spindle, and which direction it is tilted, I remove the blade, slide a piece of pipe about 4' long over the spindle (usually 1-1/2 or 2" pipe) so it clears the hub and bend it. Then I reinstall the blade and measure it again.

Sounds like a battery problem, you could have a defective cell which is causing a very low voltage to be sent to the motor which = slow spin.

Yes the charge indicator could be related.

You can take the battery apart and find out what type of cell it is and have it replaced...but personally I hate cordless lawn mowers for this exact reason so I would go but a manual push or a gas model.

Original battery is 130$+, or you can buy replacement for cheapest price (work the same). So, depends from the wallet, choose one... I found them on amazon, take a look:
1. cheapest one (about 30-40$): Amazon com 12N9 4B1 battery
2. Original one (130$+): Finally charging for our multi device world
I hope this was helpful. cheers