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+--- Thread: Delivered: UPS 12v-9Ah AGM Batteries (eBay) (/showthread.php?tid=263821)
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Delivered: UPS 12v-9Ah AGM Batteries (eBay) - MrNoBody - 02-01-2022
original deal post
FedEx just delivered & it is four PowerStar 12v-9Ah AGM Batteries.
Fresh from Vietnam, mfd Oct. 2021. All @ 12.8-12.9v on the VOM.
UPS renewals are now this week's "project"! :thumbsup:
Re: Delivered: UPS 12v-9Ah AGM Batteries (eBay) - mrbigstuff - 02-01-2022
Wow. Great deal, i was skeptical and didn't pull the trigger. A little solar array back up in the works?
Re: Delivered: UPS 12v-9Ah AGM Batteries (eBay) - gadje - 02-01-2022
Price is $47 now
Also image shows Made in China. You say your was made in Vietnam?
Re: Delivered: UPS 12v-9Ah AGM Batteries (eBay) - RAMd®d - 02-01-2022
I waited too long and the deal had expired.
But I got tipped to a deal $10 more for a similar spec'ed battery from a different vendor and manufacturer.
The deal was good but batteries OOS.
But they'll ship in a week, so I'm in.
Re: Delivered: UPS 12v-9Ah AGM Batteries (eBay) - Buzz - 02-01-2022
What about going lithium iron phosphate ? ? ?
More power, supposedly longer life, half the weight, at least twice the price (or more), but if the life really is longer, and you get 11% more power, might it makes sense? Inquiring minds want to know. Asking for a friend.
==
Re: Delivered: UPS 12v-9Ah AGM Batteries (eBay) - mrbigstuff - 02-01-2022
Buzz wrote:
What about going lithium iron phosphate ? ? ?
More power, supposedly longer life, half the weight, at least twice the price (or more), but if the life really is longer, and you get 11% more power, might it makes sense? Inquiring minds want to know. Asking for a friend.
==
I have no idea, and it's been far too long since high school Chem, but that sounds like "too good to be true" sort of marketing, eh?
Re: Delivered: UPS 12v-9Ah AGM Batteries (eBay) - macphanatic - 02-01-2022
MrNoBody wrote:
original deal post
FedEx just delivered & it is four PowerStar 12v-9Ah AGM Batteries.
Fresh from Vietnam, mfd Oct. 2021. All @ 12.8-12.9v on the VOM.
UPS renewals are now this week's "project"! :thumbsup:
But they were unloaded off the cargo ship just last week.
miley-laughing001:
Re: Delivered: UPS 12v-9Ah AGM Batteries (eBay) - Gareth - 02-01-2022
Buzz wrote:
What about going lithium iron phosphate ? ? ?
It's my understanding that LIFEPO4 isn't a "drop-in" replacement for AGM/lead-acid batteries. They have different charging and battery management requirements.
Re: Delivered: UPS 12v-9Ah AGM Batteries (eBay) - MrNoBody - 02-02-2022
Gareth wrote:
[quote=Buzz]
What about going lithium iron phosphate ? ? ?
It's my understanding that LIFEPO4 isn't a "drop-in" replacement for AGM/lead-acid batteries. They have different charging and battery management requirements. .this
Just like flooded batteries, AGM, 'Gel'; each type requires a specific
protocol re care and charging.
gadje wrote:Yep, 'Fresh from Vietnam'.
You say your was made in Vietnam?
Re: Delivered: UPS 12v-9Ah AGM Batteries (eBay) - RAMd®d - 02-02-2022
at least twice the price (or more),
This makes it a hard pass for me.
You didn't post a price on that battery, but I suspect two of them might cost more than twice the two I'm waiting on.
Li-Po batteries of any flavor require a BMS that balances the charge of the individual cells in order to extract maximum life.
The phases of a lead-acid battery charging cycle are different than those for a LiPo battery.
Some automatic chargers for lead-acid batterie have a desulfation stage that is bad for Li batteries, as are long float charge times that work well for lead-acid batteries.
A float charge is not to be confused with a trickle charge, which long term is not good for any battery.
Li batteries need to be 'warmed' up in really cold weather before they'll start a vehicle or operate at nominal output.
None of these represent a deal breaker for most people.
A lot of people have been putting Li batteries in motorcycles, and the results are mixed.
It seems to me there is a higher failure rated or shorter life for a lot of Li batteries, but I don't know why.
It may well be people don't fully understand the care and feeding of them, or that there are a lot of manufacturers that don't have great quality control.
I haven't seen any large number of reports of riders getting five years or more from Li batteries, but I see that a lot with lead-acid, specifically AGM batteries.
The weight savings of an Li battery can make a difference in handling depending on the vehicle it's in.
I stick with AGM because it's cheaper than Li, and I don't have to buy another charger.