Curious as to the actual vs advertised output of these batteries, I set up a test environment in my electronics lab to measure the results myself. After having purchased two of these “2000 mAH” batteries from Amazon, here are my results. All tests were run into a load drawing 350-400 mA. Each test took 3.5 hrs to run +/- 0:10 minutes.
Performance ranges across several tests:
Battery One
Initial Voltage, after fully charging: 8.08-8.11 V
mAh reading @ 7.39V, just below advertised voltage: 1017-1042 mAh
Final Voltage before shutdown: 5.81-6.07 V
Final mAh reading before shutdown: 1278-1280 mAh
Battery Two
Initial Voltage, after fully charging: 8.10-8.11 V
mAh reading @ 7.39V, just below advertised voltage: 1025-1068 mAh
Final Voltage before shutdown: 5.70-5.92 V
Final mAh reading before shutdown: 1306-1320 mAh
Findings:
The average mAh results at the advertised nominal Voltage (7.4V) yield an actual measurement of about 52% the advertised performance.
The average final mAh results before shutdown yield an actual measurement of about 65% the advertised performance.
Just as a point of reference, I also tested my older OEM BTECH (Baofeng) 1800 mAh batteries that came with my radios a few years ago. One shutdown after 1000 mAh and the other after only 400 mAh (the latter of which prompted my purchase of these new ones.)
Conclusion:
I don't know how low a voltage Baofeng or BTECH radios will still run below 7.4V, so I would project your actual performance to be between about 1000 and 1350 mAh if my tests had any merit.
As no manufacturer can be expected to supply products exhibiting even near their stated ratings, (measured under ideal environmental and marketing conditions,) I would rate these batteries as ADEQUATE. I would expect reasonable, stable and relatively reliable functionality from these cells.
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This Item  BaoFeng Original Replacement Battery BL-8 for Baofeng UV-82, UV-82L - Black |  |  |  |  |  | |
| Price | $10.99 | $39.99 | $17.99 | $69.89 | $69.89 | $28.59 |
| Delivery | Get it as soon as Monday, May 13 | Get it as soon as Monday, May 13 | Get it as soon as Monday, May 13 | Get it as soon as Monday, May 13 | Get it as soon as Monday, May 13 | Get it as soon as Monday, May 13 |
| Customer Ratings | ||||||
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| Quality of material | ||||||
| Sound quality | ||||||
| Easy to use | ||||||
| Value for money | ||||||
| Sold By | Amazon.com | TIDRADIO Mall | Moonwu | BaoFeng Tech | BaoFeng Tech | ABBREE |
| talk range maximum | — | — | 5 kilometer | 5 mile | 60 mile | — |
| number of channels | — | 128 | 128 | 128 | 128 | 128 |
| frequency range | — | VHF&UHF | VHF/UHF 144-148 mhz / 420-450mhz | 136 174 mhz | 400 - 520 MHz, 136 - 174 MHz | — |
| power source | Battery Powered | Battery Powered | Corded Electric, Battery Powered | Internal | Battery Powered | — |
| battery quantity | 1 lithium ion | 2 lithium polymer, 2 lithium ion | 1 lithium metal, 1 lithium ion, 1 9v | 1 lithium polymer | 1 lithium ion | — |
| tuner technology | — | UHF/VHF | VHF/UHF 144-148 mhz / 420-450mhz | UHF, VHF | UHF, VHF | VHF UHF |
Product Description
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| UV-5R MK4 | UV-5R MK5 | UV-82 MK5 | UV-9R Plus MK1 | UV-5R MK3X | UV-5R | |
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| Customer Reviews |
653
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782
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| Price | $34.75 | $30.75 | $30.75 | $35.75 | — | — |
| Free Channel List | ✓ | ✓ | ✓ | ✓ | ✓ | - |
| Programming Cable Included | ✓ | ✓ | ✓ | ✓ | ✓ | - |
| Power | 8 Watt | 8 Watt | 8 Watt | 8 Watt | 5 Watt | 5 Watt |
| FCC Approved | ✓ | ✓ | ✓ | ✓ | ✓ | - |
| Mirkit Support | ✓ | ✓ | ✓ | ✓ | ✓ | - |
| Lanyard Included | ✓ | ✓ | ✓ | ✓ | ✓ | - |
From the brand
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Reviews with images
Good deal...good price
Not sure how I want to rate this yet so I will give it a middle of the road three stars - for now.I ordered two batteries and neither one match the picture or the original battery that came with the radio.Issue one: The interior contacts are silver colored contacts and not gold colored.Issue two: There are only two contacts for charging. The Minus (Far left) and Positive (Far Right) are present while the "T" (Middle) is missing. See picture.Any reason to be concerned?Update 8/10/2015:After reading the responses to my inquiries, I went ahead and used the battery.Well, not surprisingly, it worked as a battery should and also charged as it was supposed to.Since I did not run into any issues and it worked/recharged as it was supposed to, I have upgraded my review to 5 starts.Great deal for a good price.
Top reviews from the United States
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Reviewed in the United States on February 5, 2024
Reviewed in the United States on August 7, 2015
Not sure how I want to rate this yet so I will give it a middle of the road three stars - for now.
I ordered two batteries and neither one match the picture or the original battery that came with the radio.
Issue one: The interior contacts are silver colored contacts and not gold colored.
Issue two: There are only two contacts for charging. The Minus (Far left) and Positive (Far Right) are present while the "T" (Middle) is missing. See picture.
Any reason to be concerned?
Update 8/10/2015:
After reading the responses to my inquiries, I went ahead and used the battery.
Well, not surprisingly, it worked as a battery should and also charged as it was supposed to.
Since I did not run into any issues and it worked/recharged as it was supposed to, I have upgraded my review to 5 starts.
Great deal for a good price.
I ordered two batteries and neither one match the picture or the original battery that came with the radio.
Issue one: The interior contacts are silver colored contacts and not gold colored.
Issue two: There are only two contacts for charging. The Minus (Far left) and Positive (Far Right) are present while the "T" (Middle) is missing. See picture.
Any reason to be concerned?
Update 8/10/2015:
After reading the responses to my inquiries, I went ahead and used the battery.
Well, not surprisingly, it worked as a battery should and also charged as it was supposed to.
Since I did not run into any issues and it worked/recharged as it was supposed to, I have upgraded my review to 5 starts.
Great deal for a good price.
Images in this review
Reviewed in the United States on October 2, 2016
Top reviews from other countries
kcwcc
Charged without issue. Great backup to have.
Reviewed in Canada on July 16, 2022Chris
2000mah not 2800mah like the original uv82 battery
Reviewed in Canada on June 23, 2021