Overview: best rectifiers for charging (voltage mod) - Eltek/Delta/Huawei/Emerson/Vertiv

Batteries, Chargers, and Battery Management Systems.
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Tomblarom   10 W

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Overview: best rectifiers for charging (voltage mod) - Eltek/Delta/Huawei/Emerson/Vertiv

Post by Tomblarom » Jan 21 2022 10:30am

I couldn't find anything like this and made this for myself to compare common telecommunication PSUs / rectifiers. Trying to update this frequently. Used datasheets attached. Enjoy!

Eltek

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  Model        Power   Size               Voltage        C@48v   Eff.    Weight   Public Protocols
 ------------ ------- ------------------ -------------- ------- ------- -------- ------------------
  48/1000 HE   1000W    72.0×41.5×217.0   43.5 - 57.6V   20.9A   95.5%    850g    CAN, I²C
  48/1800 HE   1800W    72.0×41.5×217.0   43.5 - 57.6V   37.5A   96.0%    850g    CAN, I²C
ImageImage



Emerson/Vertiv

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  Model        Power   Size               Voltage        C@48v   Eff.    Weight   Public Protocols  
 ------------ ------- ------------------ -------------- ------- ------- -------- ------------------ 
  R48-1000e3   1000W    52.0×41.0×152.0   42.0 - 58.0V   20.8A   95.4%    600g    Nothing yet
  R48-2000e3   2000W    84.5×41.0×252.5   42.0 - 58.0V   42.0A   96.2%   1130g    Nothing yet
  R48-3000e3   3000W    84.5×41.0×330.0   42.0 - 58.0V   62.5A   96.0%   2000g    Nothing yet
ImageImage



ImPow

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  Model       Power   Size               Voltage       C@48v   Eff.    Weight   Public Protocols  
 ----------- ------- ------------------ ------------- ------- ------- -------- ------------------ 
  R481200H1   1200W    70.3×42.5×253.0   42.0 - 58.0   25.1    96.0%   1000g    CAN               
  R482000H1   2000W    70.3×42.5×286.0   42.0 - 58.0   41.6    95.0%   1300g    CAN               
  R483000H1   2000W   106.0×42.5×286.0   42.0 - 58.0   62.5    96.0%   1900g    CAN               
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Huawei

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  Model     Power   Size             Voltage       C@48v   Eff.    Weight   Public Protocols  
 --------- ------- ---------------- ------------- ------- ------- -------- ------------------ 
  R4850G2   3000W   105×40.8×281.0   42.0 - 58.0   62.5A   96.0%   2000g    CAN               
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Delta

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  Model        Power   Size               Voltage        C@48v   Eff.     Weight   Public Protocols
 ------------ ------- ------------------ -------------- ------- -------- -------- ------------------
  ESR-48/56    2880W   125.0×41.0×269.9   40.0 - 59.0V   55.0A   91.0%    2000g    Nothing yet
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--> You can find a lot more results on mods using "model + 改可调" which means "voltage mod".
Attachments
ImPow R483000H - Datasheet.pdf
(747.38 KiB) Downloaded 7 times
Eltek Flatpack S 48v.pdf
(300.88 KiB) Downloaded 7 times
Huawei R4850G2 - Datasheet.pdf
(598.96 KiB) Downloaded 5 times
Huawei R4850G2 - User Manual.pdf
(466.68 KiB) Downloaded 7 times
Delta ESR-4_56A C - Datasheet.pdf
(117.05 KiB) Downloaded 5 times
ImPow R481200H - Datasheet.pdf
(733.58 KiB) Downloaded 5 times
ImPow R482000H - Datasheet.pdf
(775.37 KiB) Downloaded 6 times
Vertiv R48-2000e3 - User Manual.pdf
(609.92 KiB) Downloaded 6 times
Vertiv R48-1000e3 - Datasheet.pdf
(709.39 KiB) Downloaded 8 times
Vertiv R48-2000e3 - Datasheet.pdf
(599.87 KiB) Downloaded 8 times
Vertiv R48-3000e3 - Datasheet.pdf
(5.82 MiB) Downloaded 7 times
Vertiv R48-3000e3 - User Manual.pdf
(915.29 KiB) Downloaded 7 times

john61ct   100 GW

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Posts: 8507
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Re: Overview: best rectifiers for charging (voltage mod) - Eltek/Delta/Huawei/Emerson/Vertiv

Post by john61ct » Jan 21 2022 11:15am

WOW excellent resources, thanks so much for contributing this!

48V is a sweet spot for "backbone" distribution, minimizes distribution losses using cables with lower currents bussed throughout the system using smaller, less expensive conductors

then using quality DC-DC chargers & converter modules close to their loads as secondary voltage sources.


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Tomblarom   10 W

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Posts: 77
Joined: Jul 20 2018 1:33pm

Re: Overview: best rectifiers for charging (voltage mod) - Eltek/Delta/Huawei/Emerson/Vertiv

Post by Tomblarom » Jan 21 2022 11:44am

john61ct wrote:
Jan 21 2022 11:15am
48V is a sweet spot for "backbone" distribution
And for charging Li-Ion. :wink: Up until 14S (58.8v).

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