Author Topic: What Did You Buy Today?  (Read 929070 times)

Online splerdu

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Re: What Did You Buy Today?
« Reply #10500 on: August 29, 2022, 06:13:48 PM »


Samsung 980 1TB SSD to replace an old 860 Evo 500GB in my 9900k rig.

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Offline lahar

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Re: What Did You Buy Today?
« Reply #10501 on: August 31, 2022, 09:13:06 PM »
Mountainpeak Monster 29er MTB frame

Offline alaeh

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Re: What Did You Buy Today?
« Reply #10502 on: August 31, 2022, 11:19:40 PM »

Scored on a used Akitio Node from a film editing house trying to get rid of their old stuff. Was actually searching for an external PCIE expansion chassis with thunderbolt interface so I can plug a spare mellanox 10gbe sfp+ card for a macbook.
Not complaining as I got this box for way cheaper than a used expansion chassis anyway and I can plug a GPU too. Save for a few scratches on the enclosure which a can of spray paint can easily fix
and a missing thunderbolt cable it is otherwise working fine.


And it works with my Onexplayer one too. :)



Offline Mr. Bungle

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Re: What Did You Buy Today?
« Reply #10503 on: September 12, 2022, 11:08:04 PM »
Nokia 2660 Flip
Groceries
Fractal Torrent Grey

Offline Heishiro

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Re: What Did You Buy Today?
« Reply #10504 on: September 18, 2022, 11:22:42 PM »
1x bolster pillow
3x Maruto castella cake
15x Kitkat
6x wall hangers
6 pack wet wipes
Rick "rolled" Astley would never :
- Give you up
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- Run around and desert you
- Make you cry
- Say goodbye
- Tell a lie and hurt you

Offline joxsftw

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Re: What Did You Buy Today?
« Reply #10505 on: September 19, 2022, 08:10:24 PM »
Fox Fire 5600

Online splerdu

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Re: What Did You Buy Today?
« Reply #10506 on: October 10, 2022, 02:04:32 PM »
Haul for last week:

Musso gaming chair
RTX 3070
el-cheapo Displayport KVM switch (really want the one from L1T but it's $_$)

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Offline Mr. Bungle

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Re: What Did You Buy Today?
« Reply #10507 on: October 10, 2022, 03:52:21 PM »
10.10 Lazada:
Tefal Natural Force Stewpot 24cm + lid
Seasonic SSR-1000TR

Discogs:
Squarepusher - Big Loada EP Vinyl

Offline lahar

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Re: What Did You Buy Today?
« Reply #10508 on: October 31, 2022, 07:32:01 PM »
Stuff for my MTB project:
Suntour Epixon fork
Fabric Scoop Elite saddle
MTP headset
seatpost

leather wallet
groceries

Offline motion55

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Re: What Did You Buy Today?
« Reply #10509 on: November 04, 2022, 10:35:04 AM »
Ordered a couple of 12V 7AH batteries for my son's 1000VA UPS. I am trying out these LiFePo4 type batteries to see if they are better.
"Set your mind free!"

Offline Mr. Bungle

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Re: What Did You Buy Today?
« Reply #10510 on: November 04, 2022, 10:46:28 AM »
TP-Link WLAN PCIe Adapter card
Orico 4-port USB 10Gbps Hub
Kindle Paperwhite 32GB

Offline ris

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Re: What Did You Buy Today?
« Reply #10511 on: November 04, 2022, 02:11:54 PM »
Ordered a couple of 12V 7AH batteries for my son's 1000VA UPS. I am trying out these LiFePo4 type batteries to see if they are better.


where to order?  how much?  i bought some lead acid batteries for my UPS before but they seem to not work.  could also be my UPS not functioning right since its also very old
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Offline motion55

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Re: What Did You Buy Today?
« Reply #10512 on: November 05, 2022, 10:13:26 AM »
^^^It's from Shopee.

https://shopee.ph/GD-BATTERY-12V-7AH-LIFEPO4-UPS-BATTERY-SPRAYER-BATTERY-i.397309455.6689957676

Maximum current is 40A. The UPS connects the batteries in series (24V) and so 40A x 24V = 960W.

My expectation is not too high. Even at 880 each and 12.8Vx7AH=89.6Wh the price is about 10Php/Wh.

I do have a 2000VA UPS which is still OK but may need replacement batteries in the future. The above batteries won't do. I can go with 20AH lead acid batteries that are used for ebikes. I am leaning toward using LiFePo4 batteries if the above batteries work OK. I can string 8 cells to produce the nominal 24V. At 934 each and 3.2Vx30AH=96Wh or 9.72. I may have to add an active balancer to keep the individual cells charged equally. At 30AH and 3C discharge, that's 90A maximum current. It' s more than needed to supply 2000VA.

https://shopee.ph/Liitokala-Lifepo4-3.2V-30AH-5C-100A-battery-lithium-Battery-for-diy-12V-e-bike-solar-30-AH-i.16612090.5854591109
"Set your mind free!"

Offline ris

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Re: What Did You Buy Today?
« Reply #10513 on: November 05, 2022, 04:08:17 PM »
^^^It's from Shopee.

https://shopee.ph/GD-BATTERY-12V-7AH-LIFEPO4-UPS-BATTERY-SPRAYER-BATTERY-i.397309455.6689957676

Maximum current is 40A. The UPS connects the batteries in series (24V) and so 40A x 24V = 960W.

My expectation is not too high. Even at 880 each and 12.8Vx7AH=89.6Wh the price is about 10Php/Wh.

I do have a 2000VA UPS which is still OK but may need replacement batteries in the future. The above batteries won't do. I can go with 20AH lead acid batteries that are used for ebikes. I am leaning toward using LiFePo4 batteries if the above batteries work OK. I can string 8 cells to produce the nominal 24V. At 934 each and 3.2Vx30AH=96Wh or 9.72. I may have to add an active balancer to keep the individual cells charged equally. At 30AH and 3C discharge, that's 90A maximum current. It' s more than needed to supply 2000VA.

https://shopee.ph/Liitokala-Lifepo4-3.2V-30AH-5C-100A-battery-lithium-Battery-for-diy-12V-e-bike-solar-30-AH-i.16612090.5854591109


its because of the UPS that you need to connect the two batteries right?  my UPS also has that type of connection.  i bought lead acid batteries about a year ago and they actually cost more than 1k each.  but i returned those batteries 2x because they wouldnt charge properly on my UPS.  they would actually heat up indicating that they are getting charged but when i test them (unplugging from outlet) they shut down almost instantly.  so im not sure if its my UPS or the lead acid batteries that are the problem.  i bought 2 types from different sellers and returned them since they did not hold a charge
To steal ideas from one person is plagiarism
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Offline motion55

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Re: What Did You Buy Today?
« Reply #10514 on: November 05, 2022, 05:08:02 PM »
^^^The 1000VA and 2000VA are the same brand with similar specs. The 1000VA and likely also the 2000VA use 2x 12V lead acid batteries stringed together to produce 24V. This reduces the current required to generate 220V. On testing, one of the removed batteries would no longer take a charge.

The trouble with UPS batteries is the cost of the replacement batteries almost equal the price of brand-new unit. My experience is they don't last long, and you would probably be better off simply buying a new unit.

The potential problem with the LiFePO4 battery I ordered is I don't believe it's really at 7AH capacity. Like most things Shopee and Lazada, you have to derate the marketing specs to match your expectations.

I might be better off with a higher capacity so that it can supply enough discharge current for 2000VA output. I can use higher capacity lead acid batteries for ebike or solar panels. Or use the more expensive LifePo4 batteries.


Solar batteries require a higher charge/discharge cycle count because they undergo one cycle every day. They may contain a BMS (battery management system) which protects the battery from over-charging and over-discharge. This could limit the maximum current delivered and thus not work under UPS conditions. One plan is to buy individual LiFePo4 cells and put an active balancer to extend the life. But they are not cheap.

https://shopee.ph/Active-Balancer-12V-24V-48V-5A-3S-4S-8S-12S-13S-14S-16S-Lifepo4-Lithium-ion-battery-32650-32700-i.16612090.20011989035




"Set your mind free!"

Offline ris

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Re: What Did You Buy Today?
« Reply #10515 on: November 05, 2022, 10:49:26 PM »
^^^The 1000VA and 2000VA are the same brand with similar specs. The 1000VA and likely also the 2000VA use 2x 12V lead acid batteries stringed together to produce 24V. This reduces the current required to generate 220V. On testing, one of the removed batteries would no longer take a charge.

The trouble with UPS batteries is the cost of the replacement batteries almost equal the price of brand-new unit. My experience is they don't last long, and you would probably be better off simply buying a new unit.

The potential problem with the LiFePO4 battery I ordered is I don't believe it's really at 7AH capacity. Like most things Shopee and Lazada, you have to derate the marketing specs to match your expectations.

I might be better off with a higher capacity so that it can supply enough discharge current for 2000VA output. I can use higher capacity lead acid batteries for ebike or solar panels. Or use the more expensive LifePo4 batteries.


Solar batteries require a higher charge/discharge cycle count because they undergo one cycle every day. They may contain a BMS (battery management system) which protects the battery from over-charging and over-discharge. This could limit the maximum current delivered and thus not work under UPS conditions. One plan is to buy individual LiFePo4 cells and put an active balancer to extend the life. But they are not cheap.

https://shopee.ph/Active-Balancer-12V-24V-48V-5A-3S-4S-8S-12S-13S-14S-16S-Lifepo4-Lithium-ion-battery-32650-32700-i.16612090.20011989035






i had past experience of longer lasting lead acid batteries.  but those ones were bought in a physical store in quiapo.  so i cannot determine with finality if its the UPS or the lead acid batteries that are the problem.  im just using an AVR now since i got tired of replacing the lead acid batteries over and over just to get a lame ass charge
To steal ideas from one person is plagiarism
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Online splerdu

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Re: What Did You Buy Today?
« Reply #10516 on: November 06, 2022, 12:50:54 AM »
The trouble with UPS batteries is the cost of the replacement batteries almost equal the price of brand-new unit. My experience is they don't last long, and you would probably be better off simply buying a new unit.

Pretty much this.
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Offline jeremypv

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Re: What Did You Buy Today?
« Reply #10517 on: November 06, 2022, 08:32:57 AM »
^ I have 3 650va ups without a battery because of that, brand new ones lasts around 3 years, and replacements (7Ah or 9Ah) only lasts 1 year (or less), so i just replace the whole unit instead
jeremypv

Offline lahar

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Re: What Did You Buy Today?
« Reply #10518 on: November 06, 2022, 08:35:03 AM »
The trouble with UPS batteries is the cost of the replacement batteries almost equal the price of brand-new unit. My experience is they don't last long, and you would probably be better off simply buying a new unit.

Pretty much this.

This. We used to just replace batteries in the office UPSes. But the expense, not to mention the administrative hoops to buy the batteries and then the work to modify the UPSes was just not worth the savings anymore. 

Offline ris

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Re: What Did You Buy Today?
« Reply #10519 on: November 06, 2022, 02:36:36 PM »
The trouble with UPS batteries is the cost of the replacement batteries almost equal the price of brand-new unit. My experience is they don't last long, and you would probably be better off simply buying a new unit.

Pretty much this.

This. We used to just replace batteries in the office UPSes. But the expense, not to mention the administrative hoops to buy the batteries and then the work to modify the UPSes was just not worth the savings anymore. 

does your office use APC brand UPS? 

the brand new UPS compared to batteries are the other models right?  not the APC branded ones.  cause the APC branded ones are more expensive compared to lead acid batteries

any recommended UPS brand that are reliable?
To steal ideas from one person is plagiarism
To steal from many is research