I would like to know if anyone else have had any issues with ReVOV batteries. My ReVOV batteries (10.24kWh pack) are merely 14 months old, delivered 1892kWh to date, and have had several issues with batteries just shutting down, and battery cells voltages being out of range. So after paying R40000 for the battery and only getting 1892 units from it, that is a whopping R21.14/unit. And I thought Eskom power was expensive. Truely disappointed with the REVOV batteries. Will never buy or recommend the batteries. 

I have never used revov before but have heard they are second life batteries, that is basically second hand batteries that are re-built into a new enclosure. These are batteries from electric vehicles that are re-used in a second life. I personally would not buy them unless the price is very low. 

Learning the hard way. I have only had trouble so far, finding no joy with the batteries. 

On 2020/12/17 at 9:58 PM, HennieJH said:

Learning the hard way. I have only had trouble so far, finding no joy with the batteries. 

 

On 2020/12/17 at 9:58 PM, HennieJH said:

Learning the hard way. I have only had trouble so far, finding no joy with the batteries. 

Any update from the current Revov batteries

Why didn't they take it back from you. R40k isn't small money. 

On 2020/12/17 at 9:34 PM, Gerrie said:

I have never used revov before but have heard they are second life batteries, that is basically second hand batteries that are re-built into a new enclosure. These are batteries from electric vehicles that are re-used in a second life. I personally would not buy them unless the price is very low. 

Although 2 yrs later. My 100Ah 2nd life do still provide about 110Ah after more than 2yrs of light use. 2nd life are cells that meet some tested criteria. 2nd hand can be any condition and even scrap. Just like a 2nd hand car. 

My batteries seem to be doing much better than many member's new cells. 

I agree with @Scorp007. I am testing Revov 12v 200ah for a project to be used in a yacht ⛵. The 4 Revov batteries on test at the moment went through various tests of which one was a vibration test. The setup 4x 12v 200ah connected 2s2p for 24v 400ah(10kwh) I run variable load test on the batteries, charging with solar only during the day. The test inverter is a RCT 3kva VMIII set up SBU and OSO so the battery only gets charged via 6 x 330w solar panels connected 6S1P(Voc 282V). The Victron Smart Shunt has counted 9 cycles thus far and the batteries are delivering as expected with cell delta of <5mv. The bluetooth makes it a dream to follow cell balancing. I would stick my neck out and say i find these batteries the best i have test compared to CFE, Linergy and Vestwoods. Some screen shots of the test running at the moment.

 

 

 

 

 

Above screenshot from SA discharged total thus far 2269Ah at this moment discharging at ~400w.

Edited January 25, 20242 yr by TaliaB

12 minutes ago, TaliaB said:

I agree with @Scorp007. I am testing Revov 12v 200ah for a project to be used in a yacht ⛵. The 4 Revov batteries on test at the moment went through various tests of which one was a vibration test. The setup 4x 12v 200ah connected 2s2p for 24v 400ah(10kwh) I run variable load test on the batteries, charging with solar only during the day. The test inverter is a RCT 3kva VMIII set up SBU and OSO so the battery only gets charged via 6 x 330w solar panels connected 6S1P(Voc 282V). The Victron Smart Shunt has counted 9 cycles thus far and the batteries are delivering as expected with cell delta of <5mv. The bluetooth makes it a dream to follow cell balancing. I would stick my neck out and say i find these batteries the best i have test compared to CFE, Linergy and Vestwoods. Some screen shots of the test running at the moment.

 

 

 

 

 

Above screenshot from SA discharged total thus far 2269Ah at this moment discharging at ~400w.

Thanks for sharing your take on these. 

How many cycles do you expect to put them through before installing? 

I will keep the test running until March when i am back in Cpt luckily my wife knows the emergency shut down procedure🫣 in case of emergency. I would like to test it up to 40cycles that will bring total cycle count to ~ 90.

Fyi. Spoke to my wife in Cpt and asked her to switch the kettle on in the cottage where the 3kva system is connected just to show how capable these Revov batteries are, below graphs and stats from SA 

 

 

 

 

My 2 x 12v

200Ah second-life batteries are working well after 8 months

@TaliaB glad you enjoying the batteries 😀

 

 

Hi guys, 

I connected 2 x 12v 200ah Revovs in parallel in my bushlapa 

When in idle the one battery draws amps from the other battery. 2.5 to 3.5amps

Positive from one battery goes to a Fuse then Positive busbar and Negative from the other battery goes to Victron Shunt (BMV 700) then to Negative busbar. 

Any advice will be appreciated. 

 

 

2 hours ago, Peyper said:

Hi guys, 

I connected 2 x 12v 200ah Revovs in parallel in my bushlapa 

When in idle the one battery draws amps from the other battery. 2.5 to 3.5amps

Positive from one battery goes to a Fuse then Positive busbar and Negative from the other battery goes to Victron Shunt (BMV 700) then to Negative busbar. 

Any advice will be appreciated. 

 

 

If there is load connected there will be current draw from the batteries if not charging. If the shunt is in series with the neg legs of the 2 batteries then you are measuring draw from both batteries to the load. If you want to measure current draw between the batteries you need to disconnect the load and wire the shunt between the neg legs of the 2 batteries. 

 

2 hours ago, Peyper said:

Positive from one battery goes to a Fuse then Positive busbar and Negative from the other battery goes to Victron Shunt (BMV 700) then to Negative busbar. 

It looks like the above explanation is connected to measure load from both batteries. See below picture from Victron. The yellow dot is where the shunt must be. We use the left or right diagrams for batt parallel connection.

 

Edited March 31, 20242 yr by TaliaB

@Peyper

Do you have the bluetooth app for bms monitoring then you can see the battery cells diffrence(delta). Good to check occasionally the health of both batteries.

On 2024/03/31 at 8:25 AM, Peyper said:

Hi guys, 

I connected 2 x 12v 200ah Revovs in parallel in my bushlapa 

When in idle the one battery draws amps from the other battery. 2.5 to 3.5amps

Positive from one battery goes to a Fuse then Positive busbar and Negative from the other battery goes to Victron Shunt (BMV 700) then to Negative busbar. 

Any advice will be appreciated. 

 

 

I will disconnect the battery that is NOT drawing the current and charge the other one on its own until the current drops with a suitable charger. Then re-connect them in parallel and see how it goes. 

Your connections seem to be spot on. 

Edited April 1, 20242 yr by Scorp007

On 2024/03/31 at 10:12 AM, TaliaB said:

@Peyper

Do you have the bluetooth app for bms monitoring then you can see the battery cells diffrence(delta). Good to check occasionally the health of both batteries.

Hi, yes I use Carplounge BMS 

 

33 minutes ago, Peyper said:

Hi, yes I use Carplounge BMS 

 

Here is another app should you need it.

xiao xiang bluetooth app.

I know this is a pretty old thread, but I was happy enough with my R100 that after 15 months of use, I bought a second unit.

ReVOV Batteries - Your Opinion Please

 

To buy or not to buy Revov R100?

I bought one in March last year and have been happy enough to purchase a second a few months ago for a very good price from GWStore. I am considering getting a third some time in the (hopefully not too distant) future.

Edited September 29, 20241 yr by heine
Grammar

I've worked a lot with Revov batteries and have found them to be generally pretty decent. I personally have been using a C8 11.1kWh set for 4.5 years with no problems. I have found that the second life cells can run into balance problems if they are kept fully charged and the best results have been where batteries are cycled daily with moderate currents charging currents.

Regarding the 12V units I've had some 100Ah ones where the BMS low cutoff was programmed at 8.8V and the end user didn't program his load cut off correctly and the cell voltages dropped so far that the BMS turned off. I've also seen some 12V units where the batteries use pouch cells with soldered cell connections. These have proved unreliable in high humidity/wet conditions in boats so be careful using them in these applications.