RCT MP-T1000S Inverter trolley

@Reboot - MDK It's been a few months. Any issues to report? Also, compared to the original Gel batteries the RCT came with, with similar usage how did the Lithium perform in terms of time?

I have the RCT, still running on the Gel battery, when I first got it it ran for 2.5 hours without an issue. I just want to get back to this sort of level and am hoping the Lithium will help me get there and stay there.
 
Mackymclaren said:
@Reboot - MDK It's been a few months. Any issues to report? Also, compared to the original Gel batteries the RCT came with, with similar usage how did the Lithium perform in terms of time?

I have the RCT, still running on the Gel battery, when I first got it it ran for 2.5 hours without an issue. I just want to get back to this sort of level and am hoping the Lithium will help me get there and stay there.
Click to expand...
It should run about double the time so about 5 hours then.
 
Just installed 2x 100AH Lithium LiFePO4 batteries into my RCT T-2000S. So far it seems to be charging fine and had the TV on it during the last 30min of loadshedding. Keeping an eye on it till the next loadshedding.
 
Never thought of this before

But if a person struggles with the onboard dc charger not being up to the abuse of charging a lithium you can just get a boost converter and pump the juice in via the solar connection since the solar charge controllers tends to be more beefy on most of these units
 
leon.davibe said:
Never thought of this before

But if a person struggles with the onboard dc charger not being up to the abuse of charging a lithium you can just get a boost converter and pump the juice in via the solar connection since the solar charge controllers tends to be more beefy on most of these units
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What is a boost converter?
 
wingnut771 said:
Oh, a buck converter. How does using the dc battery to charge the dc battery work? Where does your increased amps come from?
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You unfortunately have to have a charger that supplies the amps

I more meant for the model with crappy charger , naturally if out of warrantee you can just open and put the charger direct on the battery, if still in warrantee the solar charging port allows you to charge without opening or having a panel

Normally the solar charge controllers can handle 30A or more while the ac charger is rated only 10A on some and even then the charge rate is only 10A for a bit and tapers off ie like car chargers do so what is the avg charging amps over the charging time?
 
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Naturally if you can buy panels

It sorts your problem of charge rate

Could also use it as an offline device during the day let the solar charge the battery and switch it off when going to bed with a empty lithium , to let the sun charge it the next day

That way you save some electricity costs and never have to worry that the internal crappy charger can get fried

If i had a device like this from the photos it looks like the charger board is a seperate board

I would put a buck converter to limit the amps between the charger and battery lets say maybe 6-7A

Then ad a old laptop power supply with a buck converter to ad what you lost or a bit more solder its supply to the ac plug that supplies the unit on the inside and leave it inside the case

Thay way your solar port is still available for a panel or 2
 
What would cause a wheezing sound on the inverter? Heat and failing capacitor issue? It was put off and on again after quite a resting period of more than 24hours, same sound after a while.

It's off now. Not at home and got sent the video.

When home again will phone Mustek and take it in probably, out of warranty.
 
@gertjeza Hi, can you let us know how the 2 x lithium batteries are working out in the RCT megapower inverter. I need to change my batteries and also want to go with lithium. Thanks
 
joshuatree said:
What would cause a wheezing sound on the inverter? Heat and failing capacitor issue? It was put off and on again after quite a resting period of more than 24hours, same sound after a while.

It's off now. Not at home and got sent the video.

When home again will phone Mustek and take it in probably, out of warranty.
Click to expand...
Seems the fan gave up. Running the Mecer version of this RCT now during loadshedding with the one large panel where one access the battery etc clipped off - no wheezing sound.

Might put a floor fan on the unit during charging to cool it off.
 
@Reboot - MDK (or anyone else with the same lithium drop in.)
How is your installation performing?
I'm quite interested to do the same. I have an RCT T2000s and it has been serving me well. Pulled through a number of 4 hour loadshedding stints since Nov last year. I can now however see a decline in battery performance once load on inverter is increased - to keep the lights on is no problem but to add tv, wi-fi etc voltage drops quite rapidly.

So my question is...are the lithiums pulling you through 4 hours with a relative load on your inverter? And to the experts- I have heard it doesn't really bother the lithiums to cycle even if they are not fully charged? It was suggested that gel batteries should be charged 12 hours before putting them through a cycle?
 
gertjeza said:
Just installed 2x 100AH Lithium LiFePO4 batteries into my RCT T-2000S. So far it seems to be charging fine and had the TV on it during the last 30min of loadshedding. Keeping an eye on it till the next loadshedding.
Click to expand...
Hi, did you add a fan to help cool the charging board?
 
Has anyone replaced their battery with a Lithium battery? If so what was needed to do this or can I just slot in a Lithium battery?
 
Right guys.. I also took the plunge, spent the money on a Lithium for my RCT T1000s. I read about the overheating issue on the forum here, so before I replaced the battery I installed a temp probe on my unit. On the original battery it ran at about 16 degrees celcius. On the lithium it is running at about 23 degrees. I did not install an additional fan, I did however cut large ventilation holes into the top and sides of the Inverter and covered it with mesh. ( sounds bad but looks ok). This little unit has been running like this for a few days now and the results are epic! Easily hits 4+ hours and I run a lot of stuff, below a list :
  1. All the lights in the house (DB board connection)
  2. Alarm panel + outside beams
  3. 1 42" TV + sound
  4. Wifi + Fibre
  5. 3 x standard computers
The battery I got for it is the Senry V-LFP12-100 ( 100ah).
 
Mackymclaren said:
Right guys.. I also took the plunge, spent the money on a Lithium for my RCT T1000s. I read about the overheating issue on the forum here, so before I replaced the battery I installed a temp probe on my unit. On the original battery it ran at about 16 degrees celcius. On the lithium it is running at about 23 degrees. I did not install an additional fan, I did however cut large ventilation holes into the top and sides of the Inverter and covered it with mesh. ( sounds bad but looks ok). This little unit has been running like this for a few days now and the results are epic! Easily hits 4+ hours and I run a lot of stuff, below a list :
  1. All the lights in the house (DB board connection)
  2. Alarm panel + outside beams
  3. 1 42" TV + sound
  4. Wifi + Fibre
  5. 3 x standard computers
The battery I got for it is the Senry V-LFP12-100 ( 100ah).
Click to expand...
I would still do a fan over the charging board; they are so cheap and can extend the life of your unit
 
Hi All. Have a Mecer 1kv trolley inverter. I added an additional battery to it and it works, however the issue I'm having is that the trip switch at the back of the inverter now does not kill power to the devices connected to the inverter. Has anyone experienced this issue? Another issue or concern is the LED light on the inverter does not switch off as well. Any suggestions?
 
Mackymclaren said:
@Reboot - MDK It's been a few months. Any issues to report? Also, compared to the original Gel batteries the RCT came with, with similar usage how did the Lithium perform in terms of time?

I have the RCT, still running on the Gel battery, when I first got it it ran for 2.5 hours without an issue. I just want to get back to this sort of level and am hoping the Lithium will help me get there and stay there.
Click to expand...
Hi, I had no problems since I did the change over. I'm very happy with the lithium battery. I don't even notice the 2 hour loudsheding when I watch TV or play games. The TV also runs good with the 4 hour long loudsheding, haven't tried the 4 hour gaming yet. The RCT trolley battery alarm didn't go of one's since the lithium battery was installed
 
Just wanted to give everyone some feedback. I have the RCT 2kva system and like many other my original gel batteries only lasted about 8 months before it did not make the 2 hours loadshedding.

So after reading up on this problem, speaking to the manufacturer and to the manufacturer of the Lifepo4 battery I decided to change over from gel to Lifepo4.

I bought two of these Lalela Lifepo4 batteries from Geewiz (Just to add their service was out of this world. Geewiz responded to all my questions and also confirmed that the batteries would work in the RCT unit)

www.geewiz.co.za

Lalela Lithium LifePO4 Battery - 12V / 80Ah / 1024Wh (2 Year Warranty)

Nominal Voltage: 12.8V Nominal Capacity: [email protected] Energy: 1024Wh Internal Resistance: ≤50mΩ Cycle Life: 2000 Cycles at 100% DOD, 3500 Cycles at 80% DOD, 6000 Cycles at 50% DOD @ 0.2C Charging/Discharging, Until 70% Capacity Cell Rating 1C Self Discharge ≤3.5% per month at 25°C Max Charging...
www.geewiz.co.za www.geewiz.co.za

The swop over of batteries was easy and once I turned the unit on the battery life was showing 80% on the RCT unit. After a few hours is was up to 100%.

It's been about 3 months now after the installation and I'm super happy with these batteries, after 2 hours of loadshedding (running 3 TV, DStv decoder and some lights) the RCT unit shows battery life at 89% once the power is restored.

I'm so happy that I'm planning on replacing my Rct 1Kva unit over to Lalela also once that battery dies.
 
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