Batteries Recharging time

[Anonymous user]

What is Recharging time for a SURT1000XLI with 10 SURT192XLBP , also is there a formula to calculate the recharging time for different no of batteries(and/or) different ups models?

[Anonymous user]

SorrySorry iffy , it's SURT10000XLI , 220v

[BillP]

Sometimes this is publicly posted, sometimes not, depending on the product line. For SURT, it is something we have to look up manually for you.

For SURT10000XLI, it takes ~3 hours to recharge the internal batteries fully. For SURT10000XLI with (10) SURT192XLBP, 30.6 hours to 90%.

[Anonymous user]

Thanks  Angela for your reply

this means that nearly we are multiplying the recharge time of one battery by the no of batteries .

in the same time the charger now is charging in serious not parallel , right ?
what if there is a fault in one of the batteries , should the UPS detect it ? what about the charging of batteries( for ex: batteries no 4,5,6,7,8,9,10) after the faulty battery (for ex ; if it were no 3) ?

what is the chrager (w ) fo the SURT10000XLI ?

[BillP]

The algorithm is NOT linear so you cannot calculate the charging time simply by how many batteries you have. I specifically asked that when I looked into this.

The modules themselves internally are wired in series (to get a higher voltage) and all of the modules operate in parallel to provide more runtime. The charger charges in parallel.

Unfortunately, this model UPS cannot specifically tell you anything beyond Replace Battery - and it could be any one of the batteries since the UPS is looking at the entire bus. They are not intelligent battery packs so you may need to do some testing to see which batteries are failing (by disconnecting one by one). Furthermore, if one set has failed, and they are all the same age, they should all be replaced in a perfect world.

And yes, if one battery pack needs replacing, they all continue to charge since ultimately, all of the batteries form one large DC bus. Unless one battery pack is unplugged, breaking the chain, they should still continue to charge as long as the batteries are connected in the bus. Like I said though, assuming the UPS batteries and battery packs are all installed at the same time and are of the same age, if one goes, its likely they all will around the same type (typically 3-5 years).

Lastly, the battery charger on this UPS is 869W.

[Anonymous user]

THanks again Angela , but you know while installing and / or buying the batteries , I couldn't guarantee same production date , even if failure happened to one of the batteries after a year , will be hard to ask for all battery replacement either from APC if it were in warranty or the customer to pay again the batteries price after warranty ends

[BillP · Accepted solution]

Yes I agree - I guess I was thinking theoretically if everything is purchased new all at the same time, they should be around the same production date. I understand due to many reasons such as cost, it may not be feasible to replace all batteries. Anyway, the UPS is not intelligent enough to tell you which specific battery has failed (if not all).