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Milwaukee Fuel 2731 Circ Saw 7-1/4" Killing Batteries

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Forum topic by AnthonyHbm posted 08-20-2016 12:16 PM 820 views 0 times favorited 6 replies Add to Favorites Watch
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AnthonyHbm

60 posts in 1149 days


08-20-2016 12:16 PM

Topic tags/keywords: circular saw milwaukee milwaukee fuel milwaukee fuel 7-14 milwaukee 2731 milwaukee battery failure battery failure dead battery

Hello Fellow Lumberjocks,

I have a one year old Milwaukee Fuel 7-1/4” Circular Saw (2731-21) and I’ve experienced a second battery failure.

Here’s how it manifests itself: I occasionally use the tool to make a rough cuts, clean and store it away for a few weeks before I need it again. Before packing it away the battery is usually around 2 bars on the fuel gauge. When I go to use the tool again, the battery is showing no bars and when placed on charge, the charger alternates red/green meaning defective battery. BTW, I remove the battery from the tool when stored.

This issue is extra troublesome for me because I do not live in a country that has a Milwaukee Repair Center, so I have to ship it overseas for warranty repairs. This obviously extends the time and adds a shipping cost to my warrantied tool.

I’m just wondering if anyone has encountered this problem because I do not know if I have a defective saw or I’ve received two bad batteries.

Any help you can offer is much appreciated.

Thanks,
Anthony

-- Anthonyhbm


6 replies so far

View waho6o9's profile

waho6o9

7172 posts in 2038 days


#1 posted 08-20-2016 12:35 PM

Does Bermuda use 110 volts at the outlet?

View Redoak49's profile

Redoak49

1944 posts in 1450 days


#2 posted 08-20-2016 12:57 PM

I would try recharging before I put it away before putting it away for weeks. Lion batteries do not like to be completely drained.

I have the M12 batteries and do not have an issue with charging the batteries but use them more frequently.

View AnthonyHbm's profile

AnthonyHbm

60 posts in 1149 days


#3 posted 08-20-2016 01:06 PM

waho6o9, we use 120v/60Hz.

Redoak49, You could be correct, although I’ve never had this problem with the M18 batteries on my Fuel impact driver or hammer drill and they’ll hold their charge for very long time, i.e. weeks.

-- Anthonyhbm

View Shawn Masterson's profile

Shawn Masterson

1297 posts in 1410 days


#4 posted 08-20-2016 06:32 PM

I recently bought the (all M18 fuel with the 5.0 batteries) H-drill, impact, 7 1/4 circular saw, and sawzall. also I have the jigsaw(non fuel). I have had no problems. I used the saw friday at work, and 1 battery lasted through cutting the triple sill plate, floor joist, box sill for a 15×16 room addition, also ripping a sheet of 3/4” OSB into 5” rips. I personally think you have something funny going on. It sux that the center is so far away. I know the tools have a 5 year warranty and the batteries are 3 years. I would take it back to where you got it, and see what they are willing to do about it. I had my M12 impact loose a clip. I hated to take it to the service center even though it is like 5 miles from the house. I called milwaukee. They were super nice, very knowledgeable, and in the USA. after talking to them they said the clips were out of stock and they would dropship them to me ASAP at no charge. Being that you are far away from the service center I would start with Milwaukee directly.

View MrUnix's profile

MrUnix

4211 posts in 1660 days


#5 posted 08-20-2016 06:46 PM

From Battery University:

Aging is a concern with most lithium-ion batteries and many manufacturers remain silent about this issue. Some capacity deterioration is noticeable after one year, whether the battery is in use or not. The battery frequently fails after two or three years.
[...]
Storage in a cool place slows the aging process of lithium-ion (and other chemistries). Manufacturers recommend storage temperatures of 15°C (59°F). In addition, the battery should be partially charged during storage. The manufacturer recommends a 40% charge.

Cheers,
Brad

-- Brad in FL - To be old and wise, you must first be young and stupid

View AnthonyHbm's profile

AnthonyHbm

60 posts in 1149 days


#6 posted 08-20-2016 07:53 PM

Thank you for the recommendations and information, Shawn & Brad.

-- Anthonyhbm

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