28ah for a 3p 18650 pack? not a chance. that's over 9ah per cell.
i find it more likely that they are using garbage cells with only a few hundred mah per cell, so the *total* combined capacity of all the cells in *1s*, 3.7v, might be 28ah (just like the many "starter" and "accessory" packs on ebay do with pouch cells).
or they're just plain lying.
title claims 1000w output? that's 1000w / 48v = about 21a, which is about 7a per cell. that would be very hard on them, if they're the garbage cells they likely are--even if they were just high capacity cells, and actually good ones, it wouldn't be an easy life at that rate.
later on in the specs they say only 10a output continous. 40a peak; in neither case is that a 1000w battery. so more wrong specs or lies, either in the specs or in the title.
and the wires are "18 lines" which must mean 18g, which is pretty thin.
physical size says there "may be 10mm error" in the dimensions, which means they don't even know how big their own packs are, or else they can't make them consistently, either of which means they're worthless.
hell, the company even stole their logo graphic (from the firefox browser)!
wouldn't touch any of their stuff with an ocean-wide-long pole.
High capacity Lithium-ion battery 48 v 28Ah 1000 w 13S3P for Electric scooter 54.6 v e-bike with BMS discharge + charger
Product parameters
Battery brand: okoman
Battery Type: 18650
Single cell voltage: 3.7 V
Combination: 13 series 3 and
Nominal voltage: 48 V input voltage: 48 V output voltage: 48 V
After combined capacity: 28,000 mAh (28Ah)
Battery dimensions: 238 * 66 * 60mm (there may be 10mm error) 3 * 13
Outer package: blue PVC
Indoors with protection circuit: overload, excessive discharge, overcurrent, short-circuit protection!
For other needs can contact the owner, thank you new and old customers.
Battery charging requirements: please go to the store to buy another charger!
1: the need for a dedicated lithium battery charger;
2: charging voltage: 48 V
3: Charge current: greater than or equal to 5A
Battery discharge requirements:
1: output 18 lines, length 200mm, red and black each
2: enter the exit line leads to a length 2.1 200mm
3: nominal discharge current: greater than or equal to to10A
4: maximum instantaneous current: 40A
5: maximum operating current: 13A
* If you need an XT60-type interface, please contact us.
Mailing list:
1.1 pieces 48v battery (with BMS)
2. 1 pieces charger
Since some packages can only deliver 2 kg of goods to certain countries, some countries must send two packages.