Products > Test Equipment
New EEVblog BM786 Multimeter
NoisyBoy:
I would say in low drain devices, the probability for battery leakage is far from low because the batteries tend to stay in the device for a long time. I would say in my case, leakage is not an if, but just a matter of time, especially for Duracell batteries. On average, I see leakage in over 50% of my low drain devices with Duracell. Handheld DMM will fall in the category, so I have long switched over to Eneloop as Fungus has suggested. The only place I use alkaline is children toys that tends to use up the batteries in weeks. Eneloop is a low low price to pay to prevent battery leakage from ruining a piece of equipment.
J-R:
I have dozens of the Eneloop Pros and white 10-year. They all have quite a bit less capacity than alkaline at low currents. I do use them in my Fluke 287 and other similar devices where it makes good economic sense. Going back maybe 40 years I can count on one hand the number of alkaline cells that have leaked and none caused any permanent damage. But of course that is just my experience.
joeqsmith:
--- Quote from: JDW on March 08, 2023, 08:37:27 am ---What is the expected BATTERY LIFE for the BM786 with fresh Alkaline batteries, backlight off?
We know the 121GW is 500 hours with BT and the backlight off, so I'm curious about the BM786.
--- End quote ---
For the 121GW, I measured 443 hours and 156 hours for the 789. The 786 came in at 118 hours. You can find that spreadsheet on-line or watch the review. There are also posts were we have discussed the assumptions I have made when making these measurements.
EEVblog:
--- Quote from: joeqsmith on March 09, 2023, 02:47:39 am ---For the 121GW, I measured 443 hours and 156 hours for the 789. The 786 came in at 118 hours. You can find that spreadsheet on-line or watch the review. There are also posts were we have discussed the assumptions I have made when making these measurements.
--- End quote ---
I'm doing a video on this now. More as a generic thing, but the 786 is the example for battery estimation.
NoisyBoy:
J-R, I completely understand your point and respect it. I just wish I am just as lucky with alkaline batteries.
Back to the BM786, Dave, I do find the meter a joy to use. Fluke used to be my default for handheld, but since I liked the BM786 so much, I just ordered a BM869s. There is never enough DMM for us addicts, although upon opening the 869s after its arrival, I have a feeling that the 786 would still be my preference due to its smaller form factor, besides, I love that EEVBlog logo and the blue!
--- Quote from: J-R on March 09, 2023, 01:03:10 am ---I have dozens of the Eneloop Pros and white 10-year. They all have quite a bit less capacity than alkaline at low currents. I do use them in my Fluke 287 and other similar devices where it makes good economic sense. Going back maybe 40 years I can count on one hand the number of alkaline cells that have leaked and none caused any permanent damage. But of course that is just my experience.
--- End quote ---
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