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MX-LMount Battery Sled Accessory for MixPre Series Audio Recorders

4.1 4.1 out of 5 stars 65 ratings
Brand Sound Devices
Item Weight 0.09 Kilograms
Connector Type USB
Item dimensions L x W x H 6 x 1.5 x 5 inches
Output Wattage 40 Watts

About this item

  • Power accessory for the MixPre-3, MixPre-6, MixPre-10T, & MixPre-10M
  • Optional L-Mount battery sled
  • Optional L-Mount battery sled
  • Compatible with Sony L-type batteries

Additional Details

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Product information

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Sound Devices MX-LMount Battery Sled Accessory for MixPre Series Audio Recorders

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Product Description

The Sound Devices MX-LMount is an optional battery sled for the Sound Devices MixPre Series (MixPre-10M, MixPre-10T, MixPre-6 and MixPre-3) audio recorders/USB audio interfaces. This powering sled holds two hot-swappable, Lithium-Ion batteries (not included). The sled is compatible with Sony L-type batteries.

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Customer reviews

4.1 out of 5 stars
4.1 out of 5
65 global ratings
Damages L-mount batteries
2 Stars
Damages L-mount batteries
As others have noted, the sled’s plugs are too thick. This results in pulling out contacts from most L-mount batteries I tried. Especially the less expensive varieties available on Amazon. Takes a knife to scrape the stuck contacts from the plugs.
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Top reviews from the United States

Terry R. AKA The Doctor Indi Film Maker Vaper
5.0 out of 5 stars For long recordings, a must.
Reviewed in the United States on August 2, 2020
Verified Purchase
Yes, it covers the SD slot. But if you 1: start with a fresh card. 2: Large enough card. You'll do just fine. A little on the expensive side, but what isn't these days? SDXC cards? Not too expensive. Just pick-up a couple of L mount batteries and your good to go for the day.
2 people found this helpful
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john p trigg
5.0 out of 5 stars Works great
Reviewed in the United States on April 16, 2022
Verified Purchase
Works well big improvement over 4 AA I would use 24 AA in a day of filming with this filmed 12 hour and sound guy never asked for batteries I was using two smaller battery you can use larger ones but did not need them.
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RB
5.0 out of 5 stars Field Problem Solved
Reviewed in the United States on June 30, 2020
Verified Purchase
We all know those types of field devices eat batteries like there is no tomorrow and this piece of adapter is here to solve our problems with having to be swapping 4 AA batteries like every so often during long shoots. Now we can get the job done with a little piece of mind, be sure to charge your battery well the night before.
One person found this helpful
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LALA
2.0 out of 5 stars Doesn’t fit batteries properly
Reviewed in the United States on April 13, 2021
Verified Purchase
It tore up my atomos NPF-770 batteries and almost tore up my DSTE. The system is build with bigger prongs which doesn’t fit batteries properly. I don’t know if it’s just mine or that’s how they built them. But honestly I can’t use it I just kept it there, waste of money I guess.
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CJ
5.0 out of 5 stars Finally
Reviewed in the United States on July 28, 2022
Verified Purchase
Good but little on the expensive side for a piece of plastic
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Ulysses Giumarra
1.0 out of 5 stars Stopped Working After One Time Use
Reviewed in the United States on June 25, 2020
Verified Purchase
I normally do not leave reviews, but unfortunately, this stopped working after one use. It is cheap and not well made and so it is no longer clipping on and thus it does not work. I will be reaching out to the company so they can send me a new one.
One person found this helpful
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PJ
3.0 out of 5 stars Good option for increasing MixPre-3 battery powered audio recording use time, but over-priced.
Reviewed in the United States on May 26, 2020
Verified Purchase
The media could not be loaded.
 In short, the product does what you need by adding 2 L-series batteries for longer audio recording run times, but as it is the only option, your hands are tied with the price - which is steep for what you get. It's a basic plastic sled and although light, does not feel sturdy for long-term use. I would not be able to trust recording time with AA battery option stock with the MixPre-3 recorder (the MixPre-3 does come with a power cord but not applicable recording on set/location), so buying this sled was necessary for me. I'm glad I have the product but I cringed when clicking 'order' due to the price. 3 stars applied based on price and overall quality of the sled.
Customer image
PJ
3.0 out of 5 stars Good option for increasing MixPre-3 battery powered audio recording use time, but over-priced.
Reviewed in the United States on May 26, 2020
In short, the product does what you need by adding 2 L-series batteries for longer audio recording run times, but as it is the only option, your hands are tied with the price - which is steep for what you get. It's a basic plastic sled and although light, does not feel sturdy for long-term use. I would not be able to trust recording time with AA battery option stock with the MixPre-3 recorder (the MixPre-3 does come with a power cord but not applicable recording on set/location), so buying this sled was necessary for me. I'm glad I have the product but I cringed when clicking 'order' due to the price. 3 stars applied based on price and overall quality of the sled.
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5 people found this helpful
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Frank Beissel
5.0 out of 5 stars Works flawlessly!
Reviewed in the United States on May 1, 2021
Verified Purchase
Works perfectly!!! Great fit and no problem changing batteries!
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Top reviews from other countries

VeggieFella
3.0 out of 5 stars The most essential $100 piece of plastic you can buy...
Reviewed in Canada on February 22, 2022
Verified Purchase
I am basing my rating on cost for value, the item functions as it should, but $100 for an item that should be 1/4 the price or be included with the recorder. I would have happily paid more for a "kit" version with everything you need. Let's face it all companies are creating accessories that are money grabs... It is also known as taking advantage of your customers.
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psybient
3.0 out of 5 stars Tight contact pins
Reviewed in the United Kingdom on January 21, 2019
Verified Purchase
This battery sled is an essential with the Mixpre series. 4 AA batteries don't last long at all (1 to 2 hours). The MX-L Mount allowes 1 or 2 Li-ion L mount batteries to be used. The difference is huge. with 2 970 batteries I can go all day without changing batteries. Obviously, it's a very different kind of lump in the bag when it has such large batteries attached to it. I don't understand why such a simple piece of plastic and pins has to cost as much as this. It's not even very well engineered. The contact pins are much tighter in the holes of the batteries than the pins of my 722, and that's where I have to deduct a couple of stars, because on removing a battery the tight fit causes the metal tube contact of the battery to pull out instead of pulling the pin from the tube. That is obviously soon going to render the battery useless. I'm going to try to superglue the metal tubes into the batteries, but at this price for the unit, why should I be having this problem? I suppose I could try crushing the contact pin with pliers, but that seems drastic.

My photos show a pin of the MX-L mount battery sled (gold color) and a pin of the 722(nickel color).

Sound Devices gear is excellent. This battery mount just seems like a cheap knock off copy, by their standards.
Customer image
psybient
3.0 out of 5 stars Tight contact pins
Reviewed in the United Kingdom on January 21, 2019
This battery sled is an essential with the Mixpre series. 4 AA batteries don't last long at all (1 to 2 hours). The MX-L Mount allowes 1 or 2 Li-ion L mount batteries to be used. The difference is huge. with 2 970 batteries I can go all day without changing batteries. Obviously, it's a very different kind of lump in the bag when it has such large batteries attached to it. I don't understand why such a simple piece of plastic and pins has to cost as much as this. It's not even very well engineered. The contact pins are much tighter in the holes of the batteries than the pins of my 722, and that's where I have to deduct a couple of stars, because on removing a battery the tight fit causes the metal tube contact of the battery to pull out instead of pulling the pin from the tube. That is obviously soon going to render the battery useless. I'm going to try to superglue the metal tubes into the batteries, but at this price for the unit, why should I be having this problem? I suppose I could try crushing the contact pin with pliers, but that seems drastic.

My photos show a pin of the MX-L mount battery sled (gold color) and a pin of the 722(nickel color).

Sound Devices gear is excellent. This battery mount just seems like a cheap knock off copy, by their standards.
Images in this review
Customer image Customer image
Customer imageCustomer image
2 people found this helpful
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