EdC Announce Power Cuts in Phnom Penh and Kandal

timmydownawell · Post by **timmydownawell** » Sun Jun 13, 2021 11:40 am

newkidontheblock wrote: ↑Sun Jun 13, 2021 11:08 am
Doc67 wrote:
timmydownawell wrote: ↑Sun Jun 06, 2021 1:32 pm Gonna build myself a chunky UPS out of LiFePO4 batteries and an inverter after I move next month.
I know my techy ignorance is well known, but "UPS out of LiFePO4 batteries and an inverter"

Nah, I'm not buying it. Bluff.
Never heard of a battery only UPS system able to run an entire house for 12 hours (or more) during the daily Khmer blackout and fully recharges in the few hours that the power comes back on.

Anyone have more experience?

My plan is to buy four 3.2V LiFePO4 200Ah batteries (i.e. make a 12V 200Ah battery from them), an appropriate BMS, and a hybrid charge controller/inverter. The inverter is plugged into a wall outlet... and the AC-out from the inverter will run the fridge, modem, router TV and a fan. In the event of a power cut it will be able to run all of those for >12 hours. If you're looking at running aircon you'll need a 24 or 48V system and a chunkier inverter and may as well buy solar panels to go with it. I'm moving to SR late next month and will be making my prototype after that, because I know SR has the flakiest power supply. Might make some to sell after that once I am happy with the result.

CEOCambodiaNews · Post by **CEOCambodiaNews** » Thu Jul 08, 2021 9:24 pm

UPDATE
Power cuts for tomorrow in Phnom Penh.
Friday, July 9, 2021:

A． Between 08:00 and 13:00 at:

Khan Russey Keo: Some power areas located in Sangkat Toul Sangke I, Sangkat Toul Sangke II, Sangkat Russey Keo (Wat Phnom Branch)

Between 08:00 and 16:00 at:
Daun Penh District: some power area No. 338 located in Sangkat Wat Phnom (Wat Phnom Branch)
Khan Sen Sok: Some areas located in Sangkat Kraing Thnong, Sangkat Kork Khleang (O Bek Kam Branch and O’Dem Branch)
Khan Por Sen Chey: Some areas located in Sangkat Choam Chao III, Sangkat Samrong Krom (O’Dim Branch)
Khan Chbar Ampov: Some areas located in Sangkat Veal Sbov, Sangkat Prek Eang (Chak Khang Chak Angre Krom)
https://www.khmertimeskh.com/50890164/e ... hnom-penh/

Grand Barong · Post by **Grand Barong** » Thu Jul 08, 2021 11:25 pm

timmydownawell wrote: ↑Sun Jun 13, 2021 11:40 am
newkidontheblock wrote: ↑Sun Jun 13, 2021 11:08 am
Doc67 wrote:
timmydownawell wrote: ↑Sun Jun 06, 2021 1:32 pm Gonna build myself a chunky UPS out of LiFePO4 batteries and an inverter after I move next month.
I know my techy ignorance is well known, but "UPS out of LiFePO4 batteries and an inverter"

Nah, I'm not buying it. Bluff.
Never heard of a battery only UPS system able to run an entire house for 12 hours (or more) during the daily Khmer blackout and fully recharges in the few hours that the power comes back on.

Anyone have more experience?
My plan is to buy four 3.2V LiFePO4 200Ah batteries (i.e. make a 12V 200Ah battery from them), an appropriate BMS, and a hybrid charge controller/inverter. The inverter is plugged into a wall outlet... and the AC-out from the inverter will run the fridge, modem, router TV and a fan. In the event of a power cut it will be able to run all of those for >12 hours. If you're looking at running aircon you'll need a 24 or 48V system and a chunkier inverter and may as well buy solar panels to go with it. I'm moving to SR late next month and will be making my prototype after that, because I know SR has the flakiest power supply. Might make some to sell after that once I am happy with the result.

Bit of a late reply to your post, but would something like this do the same job you think? Drop a 12v AGM or Lithium battery into it and your set.

timmydownawell · Post by **timmydownawell** » Fri Jul 09, 2021 6:41 am

Grand Barong wrote: ↑Thu Jul 08, 2021 11:25 pm
timmydownawell wrote: ↑Sun Jun 13, 2021 11:40 am
newkidontheblock wrote: ↑Sun Jun 13, 2021 11:08 am
Doc67 wrote:
timmydownawell wrote: ↑Sun Jun 06, 2021 1:32 pm Gonna build myself a chunky UPS out of LiFePO4 batteries and an inverter after I move next month.
I know my techy ignorance is well known, but "UPS out of LiFePO4 batteries and an inverter"

Nah, I'm not buying it. Bluff.
Never heard of a battery only UPS system able to run an entire house for 12 hours (or more) during the daily Khmer blackout and fully recharges in the few hours that the power comes back on.

Anyone have more experience?
My plan is to buy four 3.2V LiFePO4 200Ah batteries (i.e. make a 12V 200Ah battery from them), an appropriate BMS, and a hybrid charge controller/inverter. The inverter is plugged into a wall outlet... and the AC-out from the inverter will run the fridge, modem, router TV and a fan. In the event of a power cut it will be able to run all of those for >12 hours. If you're looking at running aircon you'll need a 24 or 48V system and a chunkier inverter and may as well buy solar panels to go with it. I'm moving to SR late next month and will be making my prototype after that, because I know SR has the flakiest power supply. Might make some to sell after that once I am happy with the result.
Bit of a late reply to your post, but would something like this do the same job you think? Drop a 12v AGM or Lithium battery into it and your set.

Actually what I'm thinking is kinda like that, but that one's only 300W, whereas I want to make a 1000W one which can power a full sized fridge and more. That's a smart little unit though.

Grand Barong · Post by **Grand Barong** » Fri Jul 09, 2021 7:58 am

OK, these are great for camping and stuff. can run a 12v fridge, led lights and charge phones and stuff.
Whats the price like for Lithium batteries in Cambodia? starting price here is about $450 Aud for 100AH and double that cost for a 200AH.

timmydownawell · Post by **timmydownawell** » Fri Jul 09, 2021 10:30 am

Grand Barong wrote: ↑Fri Jul 09, 2021 7:58 am OK, these are great for camping and stuff. can run a 12v fridge, led lights and charge phones and stuff.
Whats the price like for Lithium batteries in Cambodia? starting price here is about $450 Aud for 100AH and double that cost for a 200AH.

The 3.2V 200Ah batteries retail for around $125 each here. But I got a quote to buy a bunch from Alibaba and including shipping they came to an average of $65 each. Unfortunately I wasn't ready to buy and that seller pulled a bait & switch on me, so maybe that deal wasn't legit.

Meanwhile this looks ok for a smaller capacity for $380:
https://www.aliexpress.com/item/4000902519559.html?

Grand Barong · Post by **Grand Barong** » Fri Jul 09, 2021 1:20 pm

Meanwhile this looks ok for a smaller capacity for $380:
https://www.aliexpress.com/item/4000902519559.html

Nice compact unit.. would be ideal for somewhere that has frequent short power outages.

AndyKK · Post by **AndyKK** » Fri Jul 09, 2021 1:38 pm

timmydownawell wrote: ↑Sun Jun 13, 2021 11:40 am
newkidontheblock wrote: ↑Sun Jun 13, 2021 11:08 am
Doc67 wrote:
timmydownawell wrote: ↑Sun Jun 06, 2021 1:32 pm Gonna build myself a chunky UPS out of LiFePO4 batteries and an inverter after I move next month.
I know my techy ignorance is well known, but "UPS out of LiFePO4 batteries and an inverter"

Nah, I'm not buying it. Bluff.
Never heard of a battery only UPS system able to run an entire house for 12 hours (or more) during the daily Khmer blackout and fully recharges in the few hours that the power comes back on.

Anyone have more experience?
My plan is to buy four 3.2V LiFePO4 200Ah batteries (i.e. make a 12V 200Ah battery from them), an appropriate BMS, and a hybrid charge controller/inverter. The inverter is plugged into a wall outlet... and the AC-out from the inverter will run the fridge, modem, router TV and a fan. In the event of a power cut it will be able to run all of those for >12 hours. If you're looking at running aircon you'll need a 24 or 48V system and a chunkier inverter and may as well buy solar panels to go with it. I'm moving to SR late next month and will be making my prototype after that, because I know SR has the flakiest power supply. Might make some to sell after that once I am happy with the result.

I enquired about a rental property recently in SR, the reply I got back was they are only allowed to rent out to people who have been living in none Covid zones in SR, or have done 14 days quarantine after traveling.

timmydownawell · Post by **timmydownawell** » Fri Jul 09, 2021 2:00 pm

AndyKK wrote: ↑Fri Jul 09, 2021 1:38 pm
timmydownawell wrote: ↑Sun Jun 13, 2021 11:40 am
newkidontheblock wrote: ↑Sun Jun 13, 2021 11:08 am
Doc67 wrote:
timmydownawell wrote: ↑Sun Jun 06, 2021 1:32 pm Gonna build myself a chunky UPS out of LiFePO4 batteries and an inverter after I move next month.
I know my techy ignorance is well known, but "UPS out of LiFePO4 batteries and an inverter"

Nah, I'm not buying it. Bluff.
Never heard of a battery only UPS system able to run an entire house for 12 hours (or more) during the daily Khmer blackout and fully recharges in the few hours that the power comes back on.

Anyone have more experience?
My plan is to buy four 3.2V LiFePO4 200Ah batteries (i.e. make a 12V 200Ah battery from them), an appropriate BMS, and a hybrid charge controller/inverter. The inverter is plugged into a wall outlet... and the AC-out from the inverter will run the fridge, modem, router TV and a fan. In the event of a power cut it will be able to run all of those for >12 hours. If you're looking at running aircon you'll need a 24 or 48V system and a chunkier inverter and may as well buy solar panels to go with it. I'm moving to SR late next month and will be making my prototype after that, because I know SR has the flakiest power supply. Might make some to sell after that once I am happy with the result.
I enquired about a rental property recently in SR, the reply I got back was they are only allowed to rent out to people who have been living in none Covid zones in SR, or have done 14 days quarantine after traveling.

SR is off for me now anyway, as it turns out.

AndyKK · Post by **AndyKK** » Fri Jul 09, 2021 2:04 pm

timmydownawell wrote: ↑Fri Jul 09, 2021 2:00 pm
AndyKK wrote: ↑Fri Jul 09, 2021 1:38 pm
timmydownawell wrote: ↑Sun Jun 13, 2021 11:40 am
newkidontheblock wrote: ↑Sun Jun 13, 2021 11:08 am
Doc67 wrote:
I know my techy ignorance is well known, but "UPS out of LiFePO4 batteries and an inverter"

Nah, I'm not buying it. Bluff.
Never heard of a battery only UPS system able to run an entire house for 12 hours (or more) during the daily Khmer blackout and fully recharges in the few hours that the power comes back on.

Anyone have more experience?
My plan is to buy four 3.2V LiFePO4 200Ah batteries (i.e. make a 12V 200Ah battery from them), an appropriate BMS, and a hybrid charge controller/inverter. The inverter is plugged into a wall outlet... and the AC-out from the inverter will run the fridge, modem, router TV and a fan. In the event of a power cut it will be able to run all of those for >12 hours. If you're looking at running aircon you'll need a 24 or 48V system and a chunkier inverter and may as well buy solar panels to go with it. I'm moving to SR late next month and will be making my prototype after that, because I know SR has the flakiest power supply. Might make some to sell after that once I am happy with the result.
I enquired about a rental property recently in SR, the reply I got back was they are only allowed to rent out to people who have been living in none Covid zones in SR, or have done 14 days quarantine after traveling.
SR is off for me now anyway, as it turns out.

SR is off for me now too timmydownawell.

EdC Announce Power Cuts in Phnom Penh and Kandal

Re: EdC Announce Power Cuts in Phnom Penh and Kandal

Re: EdC Announce Power Cuts in Phnom Penh and Kandal

Re: EdC Announce Power Cuts in Phnom Penh and Kandal

Re: EdC Announce Power Cuts in Phnom Penh and Kandal

Re: EdC Announce Power Cuts in Phnom Penh and Kandal

Re: EdC Announce Power Cuts in Phnom Penh and Kandal

Re: EdC Announce Power Cuts in Phnom Penh and Kandal

Re: EdC Announce Power Cuts in Phnom Penh and Kandal

Re: EdC Announce Power Cuts in Phnom Penh and Kandal

Re: EdC Announce Power Cuts in Phnom Penh and Kandal

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