Difference between "regular" SLA's and those "DZM" SLA's

[imorton]

Hi Guys, quick question. I see that some scooter dealers are pushing those DZM lead acid batteries as being much superior to those regular SLA batteries?

Does anyone know what the difference is between DZM and normal SLA's ?

I've googled the DZm style lead batteries and found nothing, so i am thinking it is a way for Chinese scooter manufacturers to grab all the replacement battery business (due to dealers suggesting to only replace with "much better" DZM batteries for EV use)

Any help would be greatly appreciated, IAN…

 

[wesnewell]

Read the hype. True or not????
http://www.sacredsun.com/product_show_244.html

 

[dogman dan]

There are definite advantages to using an sla that is EV rated vs one intended for long standby followed by a 1 or 2 amps discharge. Different lead plate designs depending on the application.

My guess is that DZM is just one manufacturers way of saying EV rated type. Might make sense as an acronym in Chinese or just be random letters unused to specify anything else.

 

[imorton]

Read the hype. True or not????
http://www.sacredsun.com/product_show_244.html

Thanks for the article, very interesting, and I see only small changes. Hmmm, not worth the double price.

IAN…

 

[imorton]

There are definite advantages to using an sla that is EV rated vs one intended for long standby followed by a 1 or 2 amps discharge. Different lead plate designs depending on the application.

My guess is that DZM is just one manufacturers way of saying EV rated type. Might make sense as an acronym in Chinese or just be random letters unused to specify anything else.

It's funny that with 50 million e-bikes out there, there isn't more talk about these DZM's…

I looked at the previous article, and I don't see how they are worth double the price. I think its a way for them to add some marketing hype and monetize on that.

Definitely much better to buy LifePo4 once my SLA's come to end of life.

IAN…

 

[dogman dan]

No arguments there. Typically, a true EV rated sla is close to twice the price of sla's for light duty. But compared to lithium, I can sure see a lack of buzz about lead. The last lead holdouts tend to be, well, lets just say thrifty.

But cost per mile of a decent lifepo4 is much less than most lead. Doubling or tripling the range with half the cost is kinda nice too. Lead can still be great though, for those with a 2-3 mile ride one way, who might not ride even 200 miles a year. Lithium for the win though, if you ride 1000-3000 miles a year.

 

[Hillhater]

SLA' s come in many forms and construction.
EG>... Liquid filled,... Adsorbed Glass Mat (AGM),.... Gell electrolyte,.. etc, as well as different detailed construction internally.
Apart from their Ahr capacity and max Amp output capacity, some of these batteries do not like mobile applications ao being subject to vibration. Some have been shown to fail very quickly with internal damage caused by vibration.
So be careful and choose a supply /battery that has a proven record of "Dynamic" use, such as those used in fighter aircraft !
Generally the "Big Brand" names are best.. Panasonic, Yuasa, etc.

 

[dawrench]

I remember reading that Hawker Cyclon cells were used in satellites. SLA AGM cells with a cylindrical form and metal case. If they can survive rocket launch G forces and vibration, then they could survive an e bike.