It’s a fair opinion. I just like have a couple of spare cells handy so I’d likely buy a couple of same size and ah cells to be on standby. I fear one bad cell taking out a whole packNot that ive done this by any means but i can imagine use of an end mill to carefully mill through each of the welds if one really wanted to tear this thing down. A lot of effort and.. requires the mill.
Honestly, as much as i like the idea of user serviceability in general I kinda feel like, unless there is some kind of guaranteed supply of compatible cells, that the only way you'd be messing with cells is to re-cell the entire thing with a new matched set. I'm more concerned about servicing 'stupid' failures like poor connections causing melting wiring, or a bad bms etc. Those are the kind of failures i perceive (perhaps wrongly?) as more likely, and those are possible just because of the screwed on lid. So i take the bolted lid as being probably 70+% of what i care about in 'serviceability'. Maybe it's an odd opinion.. not sure!
Cheapest 48v 50ah battery I've found so far. $409.99 free shipping
- Thread starter cs1234
- Start date
See post number 33 for a better price on the Eco worthy.
BuffaloTrace
Solar Enthusiast
- Joined
- Dec 3, 2020
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- 480
Yes I did see that Ebay deal. It seems these are all slowly trending down, and each sales platform having its own benefits.
Picked up one of the DC house 50AH units from Amazon.
Internals looked good, same as the previous poster.
Managed to sneak the thermocouple out from under the putty, low temperature cutoff does not work at all. High temp cutoff works fine.
pulled 51AH from the battery with a constant ~420W load.
Internals looked good, same as the previous poster.
Managed to sneak the thermocouple out from under the putty, low temperature cutoff does not work at all. High temp cutoff works fine.
pulled 51AH from the battery with a constant ~420W load.
I'll double check but I believe I only saw leads for one thermocouple with no obvious spot to plug in a second one.
Brucey
Solar Wizard
Brucey
Solar Wizard
No BT.
ScrotpusGobbleBottom
z nice
I have one of these. Used it for an window AC unit for a summer. It worked great and still should. Its one of my backups.
Hedges
I See Electromagnetic Fields!
- Joined
- Mar 28, 2020
- Messages
- 21,831
"provides 1000 Watts continuous DC to AC power and 2000 Watts instantaneous power"
If good for a second, that would do it. If not, the 2500 or 3000 model.
diysolarforum.com
An old Statpower 2500W inverter was able to start a 12A air compressor, but not a 12A log splitter. Both Harbor Freight with induction motor.
diysolarforum.com
If good for a second, that would do it. If not, the 2500 or 3000 model.
Is 600w enough
I plan on putting 600w of solar panels on the roof of a small camper. The Panels will be able to tilt so I can get as much power as I can. My main use is to run a 5000 BTU AC tha draws 450w in the summer and a 500w space heater in the winter & a few little items like phones, tablets and led...
diysolarforum.com
An old Statpower 2500W inverter was able to start a 12A air compressor, but not a 12A log splitter. Both Harbor Freight with induction motor.
High Frequency Inverter battery current waveform
In the interest of science ;) I have captured waveforms drawn by a high frequency inverter from the battery. This could give some insight to how a BMS might react. About 25 years ago I found myself with idle hands and some money ($800?) burning a hole in my pocket. I wandered into Quement...
diysolarforum.com
Last edited:
ScrotpusGobbleBottom
z nice
It did for me. Mine was small, 7500 Btus i think. It was the 1500 watt
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ScrotpusGobbleBottom
z nice
I slept well with it on.
mjgillen
New Member
The Eco Worthy ones on eBay are $368 with coupon through 2/19 and free shipping from Los Angeles which is near me.
Michael
ECO-WORTHY 48V 50Ah 100Ah 200Ah LiFePO4 Lithium Battery Metal Case BMS Golf Cart | eBay
It weighs only 58.42lbs, only 1/3 of the weight of lead-acid Battery and only 2/3 the size of it. ãAdvanced BMS Protectionã. LiFePO4 Battery. ãSmall Size Lifepo4 Batteryã. Its stackable design and easy connectivity make it a space-efficient solution for your storage needs.
www.ebay.com
Michael
Lt.Dan
Solar Wizard
Wow thats cheap. I just wish they came in larger capacities instead of multiples of 50ah.The Eco Worthy ones on eBay are $368 with coupon through 2/19 and free shipping from Los Angeles which is near me.
ECO-WORTHY 48V 50Ah 100Ah 200Ah LiFePO4 Lithium Battery Metal Case BMS Golf Cart | eBay
It weighs only 58.42lbs, only 1/3 of the weight of lead-acid Battery and only 2/3 the size of it. ãAdvanced BMS Protectionã. LiFePO4 Battery. ãSmall Size Lifepo4 Batteryã. Its stackable design and easy connectivity make it a space-efficient solution for your storage needs.www.ebay.com
Michael
Brucey
Solar Wizard
I think 60 or 80lbs is the point where UPS/FedEx start charging premiums for weight so I can see the logic behind a 50Ah unit. Also easier to haul around by one person.
Lt.Dan
Solar Wizard
Thats a good idea. Like was mentioned earlier in this thread, the weight, form factor, and smart placement of handles makes it very enticing
Just purchased 4 of these to start my new battery chemistry, hope they work out.The Eco Worthy ones on eBay are $368 with coupon through 2/19 and free shipping from Los Angeles which is near me.
ECO-WORTHY 48V 50Ah 100Ah 200Ah LiFePO4 Lithium Battery Metal Case BMS Golf Cart | eBay
It weighs only 58.42lbs, only 1/3 of the weight of lead-acid Battery and only 2/3 the size of it. ãAdvanced BMS Protectionã. LiFePO4 Battery. ãSmall Size Lifepo4 Batteryã. Its stackable design and easy connectivity make it a space-efficient solution for your storage needs.www.ebay.com
Michael
Brucey
Solar Wizard
10kWh for $1472 what a way to get into LFP! Ordered one unit using the PayPal 4 payment spread thing.
mjgillen
New Member
On the right side, below the buy it now button, there a small bit of text that says “From only” and a “show me how” link that gives you the coupon code “PRESIDENT20”
I recently was planning my switch from 12v to 48v, showed my buddy some 48v batteries.
His first comment was am I going to want to deal with 100 lb batteries in 10 yrs?
I like the idea of 50ah size paralleled.
For my first 48v setup, I decided to go 4x12vx100ah djlbermpw. About $700 for batteries.
I may end up putting a cpl of these in parallel.
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