Hi Everyone,

I'm planning to install a 5kva Sunsynk Inverter, I'm just looking at my options regarding batteries, the options I've come down to are Dyness or Shoto 5.12kw batteries, they're both prices similarly at around R24k.

Here are the batteries I'm considering:

Shoto: https://www.solar-europe.co.za/product/shoto-battery-lithium-ion-5-1kw-16cell-sda10-48100/
Dyness: https://www.solar-europe.co.za/product/dyness-battery-lithium-ion-5-12kwh-51-2v-100ah-bx51100/

Are there any other's I should be considering within that price range and between the two of these, which would be a better option?

Thanks

The only major difference between those batteries is the charge/discharge rate. The Shoto does 100A, but the Dyness only does 75A which will come in to play if you are planning to only install 1 battery. That inverter will require 100A to deliver 5kVA, so you would need 2 of the Dyness to get full power delivery.

They both support CAN comms so there shouldn't be a problem with the sunsynk.

Shoto is still recommended to be run at 50A discharge. Both are still not a true 1C.

Thanks guys for the info, I'm probably going to get the Shoto in that case as it's costing me a few grand less than the Dyness.

2 hours ago, ysfsuleman said:

Thanks guys for the info, I'm probably going to get the Shoto in that case as it's costing me a few grand less than the Dyness.

I'd still suggest getting a comparative quote including installation, bearing in mind that the Shoto is rack-mounted while the Dyness could be wall-mounted. You may incur additional costs for a cabinet or fitment brackets, etc.

Beyond that I think you're in territory where the price alone shouldn't be the deciding factor, but it could help to dig deeper into understanding the warranty conditions, the warranty period, remaining usable life at the end of the warranty period, allowable cycle life, and any other exclusions to see which one offers the better deal.

For example, if you follow the warranty details in the links you posted, Shoto offers a 5-year warranty from date of manufacture, while Dyness offers a 7-year warranty from date of invoice, and up to 10 years upon registration. In that way the Dyness could be a better deal after 8 years if something goes wrong with the battery.

On the other hand, Shoto seems better in allowing up to 700 discharge cycles in a year, while the Dyness warranty covers basically one full cycle per day. It could be that Shoto ends up being a better deal after 4 years if there's been heavy loadshedding that requires sometimes more discharges per day, say if you're on 500 discharges per year and the battery conks in, while on a Dyness you may not be covered.

Thanks @GreenFields. That's a lot to think about...

I now also have the option of a Sunsynk 5.1kw battery as somebody has given me a very reasonable quote with this as an option. I would assume that the Sunsynk battery with the Sunsynk 5kva inverter I'm planning to install will be a better option than the other two... Right?

4 minutes ago, ysfsuleman said:

I now also have the option of a Sunsynk 5.1kw battery as somebody has given me a very reasonable quote with this as an option. I would assume that the Sunsynk battery with the Sunsynk 5kva inverter I'm planning to install will be a better option than the other two... Right?

Yes, considering that if you combine the Sunsynk battery with a Sunsynk inverter, that extends the warranty to 10 years.

Also, the Sunsynk offers a 1C discharge rate, so if you're buying only one battery, compared to the Shoto and the Dyness, the Sunsynk's offering has a distinct advantage in this regard.

I’m installing Shoto 2x 5.12’s and with this conversation I’m also getting a bit worried especially with the issues mentioned and the 0.5c discharge rate…..I have an option of swopping to a Westwood 10kwh …..should I consider knowing the Westwood also has 0.5c discharge rate?? 
 

thoughts please?

3 hours ago, Raiden2912 said:

I’m installing Shoto 2x 5.12’s and with this conversation I’m also getting a bit worried especially with the issues mentioned and the 0.5c discharge rate…..I have an option of swopping to a Westwood 10kwh …..should I consider knowing the Westwood also has 0.5c discharge rate??

With which inverter? A 5kVA should be perfectly fine with those 2 x 0.5C batteries.

Goal for me is not to knock any particular brand, just to help make sense of what's on offer. From what I've seen, each option in this thread has a scenario in which it's the better option

My inverter is a 8kw OCI

Other question if you don’t mind surge protectors for my in house appliances what do you recommend?

14 minutes ago, Raiden2912 said:

My inverter is a 8kw OCI

Other question if you don’t mind surge protectors for my in house appliances what do you recommend?

Several threads on the C-rating if you search this forum. Bottom line is to be aware that the 10kWh 0.5C battery pack will only deliver approx 5kW of steady power. For the 8kW inverter if you want closer to full power you might want to consider a 3rd 0.5C battery, or else 2 x 1C batteries, but they typically cost more.

Can't comment on surge protectors, sorry.

Happy with this thank you! Much appreciated 

Geez this thread is awesome and provides real world fixes and recommendations! Much appreciated #newbie

Had my system installed today, went with BSL battery, Sunsynk batteries was out of stock at the supplier and the contractor managed to give me the BSL at the same price. Thanks for all the advice here, I really appreciate it. 

Put some tape on the battery communication ports. You don't want random stuff and gunk to fill it up.