Just received a new Dorado 25ah battery
- Thread starter Bitmugger
- Start date
Eucrider
Member
- Region
- United Kingdom
Yes until the 28th of April I believe
tomjasz
Well-Known Member
- Region
- USA
- City
- Minnesnowta
In late March it was April 5th. April 4th it was April 15th.
We ought to give China the formulas for better vaccines.
Cristian
New Member
- Region
- Europe
i have the same bike, mx03.
It is very good .
I would like to increase the torque, but to change the controller I have read that it is very complicated, because there may be compatibility problems with the display, etc.
but anyway if you know any compatible and more powerful model let me know
maybe with the battery you bought the performance will increase a bit, since it should keep the voltage high for longer.
let me know how the new battery goes that I would like to buy too.
do you know any other changes to improve its performance?
thank you
however I am very happy with this bike
Eucrider
Member
- Region
- United Kingdom
Can't wait to receive the battery with samsung cells and 25ah it shouldn't get as much battery sag after 40% battery ,but overall I'm happy with the Shengmilo mx03 yes I do think the torque is a bit weak at 18amp max but tbh it pulls up hill fine in the right gear and I'd rather keep the range, more current less range, I’ll wait till I get the battery you never know it might be powerful all the way down to end of battery,, I'll keep updating my tests when I receive it thx
You could try a shunt mod it will give you more torque https://endless-sphere.com/forums/viewtopic.php?t=29097
Or you could buy a
KT-LCD8H & KT Controller maybe a 25 amp or 30 amp controller
Hey everyone.
Just thought I'd post a brief 1 year followup review. The 25ah battery is still doing amazing. It's my goto battery (I have several) and continues to give excellent range and performance. I've biked about 4500km and most of it was on the 25ah battery.
Can't say enough good about it, works great, huge range, continues to work well. I've also stayed in touch with Jenny and she continues to be awesome to deal with.
Just thought I'd post a brief 1 year followup review. The 25ah battery is still doing amazing. It's my goto battery (I have several) and continues to give excellent range and performance. I've biked about 4500km and most of it was on the 25ah battery.
Can't say enough good about it, works great, huge range, continues to work well. I've also stayed in touch with Jenny and she continues to be awesome to deal with.
tomjasz
Well-Known Member
- Region
- USA
- City
- Minnesnowta
With a 36v 60 miles full throttle. Charging to 80% and LVC at 20%. 21700 batteries rock.
1 year old on the battery and I get 100km from it at PAS 6. I am a heavy rider at 250lbs+ though so a lighter rider with higher fitness could go further
Eucrider
Member
- Region
- United Kingdom
Thanks for that still waiting for mine to be delivered due to covid in shanghai
Hey Everyone. More updates on the long term use of the 25ah battery from Aijiu Energy (Or 'Jenny's Battery' as we call it in my household).
Last July shortly after receiving the 25ah battery I did a capacity test to verify its total capacity was really as stated. The test at the time came to 1182wh out of a theoretical maximum of 1200wh. I was very happy with those results. Now a year later and thousands of kilometers on the battery I wanted to see what the capacity was now, had it degraded through time or use? Lithium Ion cells will degrade in capacity over time, this can be slowed by storing the battery at less than full charge but happens regardless. Using the battery also degrades it over time, the Samsung 50E cells in the battery pack are rated for 500 charge cycles before losing approx 20% of their capacity. I'm no where near 500 cycles or even 100 cycles but was curious what my use of the battery would do to its capacity. BTW 500 cycles x 100km per charge (bike at full assist) = 50,000km or 10 years of use even for my riding level and I don't ride full assist all the time.
My method of use for the battery is to fully charge it right after use every time I use it. We cycled year round although far less in the winter so I've never even stored it at reduced charge since it's been put on a bike at least once every couple weeks even in the dead of winter. I use a timer on my charger so it charges for 8 hours (usually enough to refill it) and shuts off. I don't do anything special beyond that, if I bike 10km I charge it, if I bike 100km I charge it. Past the initial break in period I no longer worry about doing full discharges although they more or less occur naturally just by me using the battery for longer trips.
My rig is still the exact same low-tech rig I used before; two old time incandescent light bulbs as a load using 1 amp of power hooked to a meter that measures voltage, current and total watt-hours. I fully charged it and put it on the test rig it started at 54.4 volts and the BMS cut it off I think at just below 42v but my meter doesn't store the final cut off voltage. I am very happy to report the final watt-hours after 1 year and 1000's of km of riding (I put on 4500km last year mostly on the 25ah) was 1171wh. That's less than 1% decline!! Lol that's almost just a math error more than anything. This battery is as good after a year of hard use as it was the day it arrived.
Thank you so much Jenny for this battery, it works fantastic and takes all the abuse I give it on trails, in the rain (I do try and cover it in heavy rain) and hot days, cold days. I don't do anything special to maintain it, I do short charges, long charges, I always fully charge it and the battery is working perfect. I feel 4500km/year is more than most casual riders would put on it and represents 2 years or more riding for many riders. If anyone has had lingering doubts on where to find a good battery I don't think you need to look further than this one. On facebook I recommend Jenny to anyone looking for a battery and I'm happy my results back up my recommendation. I think the price has even dropped vs what I paid! So much for inflation, ha ha.
Jenny and I have remained in contact throughout the year and she continues to be amazing to deal with. Her and I talked about a 52v high capacity version of the dorado battery and I can report I ordered one and it's in-transit to my door right now! I'll do a full review of it too on NCM and Amego bikes and with a Bafang mid-drive when it arrives but I'm excited to play with it. The Amego and Bafang bikes are both 'unlocked' and capable of riding past 32km/hr and will enjoy a higher top end I hope and increased acceleration when the batteries at full charge. We will program out all the limits on the Bafang for the tests and it'll do over 50km/hr now on a Dorado 48v battery if you let it run wide so it'll be interesting to see the 52v version.
Last July shortly after receiving the 25ah battery I did a capacity test to verify its total capacity was really as stated. The test at the time came to 1182wh out of a theoretical maximum of 1200wh. I was very happy with those results. Now a year later and thousands of kilometers on the battery I wanted to see what the capacity was now, had it degraded through time or use? Lithium Ion cells will degrade in capacity over time, this can be slowed by storing the battery at less than full charge but happens regardless. Using the battery also degrades it over time, the Samsung 50E cells in the battery pack are rated for 500 charge cycles before losing approx 20% of their capacity. I'm no where near 500 cycles or even 100 cycles but was curious what my use of the battery would do to its capacity. BTW 500 cycles x 100km per charge (bike at full assist) = 50,000km or 10 years of use even for my riding level and I don't ride full assist all the time.
My method of use for the battery is to fully charge it right after use every time I use it. We cycled year round although far less in the winter so I've never even stored it at reduced charge since it's been put on a bike at least once every couple weeks even in the dead of winter. I use a timer on my charger so it charges for 8 hours (usually enough to refill it) and shuts off. I don't do anything special beyond that, if I bike 10km I charge it, if I bike 100km I charge it. Past the initial break in period I no longer worry about doing full discharges although they more or less occur naturally just by me using the battery for longer trips.
My rig is still the exact same low-tech rig I used before; two old time incandescent light bulbs as a load using 1 amp of power hooked to a meter that measures voltage, current and total watt-hours. I fully charged it and put it on the test rig it started at 54.4 volts and the BMS cut it off I think at just below 42v but my meter doesn't store the final cut off voltage. I am very happy to report the final watt-hours after 1 year and 1000's of km of riding (I put on 4500km last year mostly on the 25ah) was 1171wh. That's less than 1% decline!! Lol that's almost just a math error more than anything. This battery is as good after a year of hard use as it was the day it arrived.
Thank you so much Jenny for this battery, it works fantastic and takes all the abuse I give it on trails, in the rain (I do try and cover it in heavy rain) and hot days, cold days. I don't do anything special to maintain it, I do short charges, long charges, I always fully charge it and the battery is working perfect. I feel 4500km/year is more than most casual riders would put on it and represents 2 years or more riding for many riders. If anyone has had lingering doubts on where to find a good battery I don't think you need to look further than this one. On facebook I recommend Jenny to anyone looking for a battery and I'm happy my results back up my recommendation. I think the price has even dropped vs what I paid! So much for inflation, ha ha.
Jenny and I have remained in contact throughout the year and she continues to be amazing to deal with. Her and I talked about a 52v high capacity version of the dorado battery and I can report I ordered one and it's in-transit to my door right now! I'll do a full review of it too on NCM and Amego bikes and with a Bafang mid-drive when it arrives but I'm excited to play with it. The Amego and Bafang bikes are both 'unlocked' and capable of riding past 32km/hr and will enjoy a higher top end I hope and increased acceleration when the batteries at full charge. We will program out all the limits on the Bafang for the tests and it'll do over 50km/hr now on a Dorado 48v battery if you let it run wide so it'll be interesting to see the 52v version.
Last edited:
Smoofwah
New Member
- Region
- USA
Thats exciting 
I'm looking to build a DIY bike and was going to go with 2 48V 25ah packs
or wait and see if there was any further information on the ShanShan Tech battery packs
Another alternative option is I anyone could point me to a diy battery guide that might be cool as well.
I'm looking to build a DIY bike and was going to go with 2 48V 25ah packs
or wait and see if there was any further information on the ShanShan Tech battery packs
Another alternative option is I anyone could point me to a diy battery guide that might be cool as well.
kkreso
New Member
- Region
- Australia
Hi,my longest ride using this new 25ah battery- my bike is moscow plus 27.5, 250watt motor,i weigh 260lbs,used mostly pas 3-4 ,few hills here& there but mostly flat roads,i done in total 52 km ,with 2 bars left,46.8 on display when i got back home,does this sound about right for my journey & weight & the battery level arriving back home? I still get battery anxiety since using the previous 16ah battery,so find it hard to stop worrying about battery range& do lots of leg work too on my rides,im no mathematician in these battery equations but my instinct was before buying this battery i would have more left on the battery after 32 miles,any advice or conversation on others experiences with the 25ah battery similar to mine id appreciate,thank you
I'm attaching a table which gives a rough idea of the relationship between voltage and capacity remaining of a 48V pack. This table would suggest that at 46.8V, you have about 50% remaining....note that this is a rough estimate only.
Attachments
PCeBiker
Well-Known Member
- Region
- Canada
@Sandy77
If you didn't buy your battery from @Jenny Mao then there is a really good chance that your battery labeled "25ah" is no where near actually being a 25ah battery.
Battery makers lie.
Jenny doesn't lie.
Her 25ah batteries are actually 25ah.
Here's a 48V 30ah lithium battery from Amazon for $142 CAD !!!
Here's an even better deal !!
48 volt 100 amp hours for $107 Canadian dollars!!! Lol
I'm sure that it's built with quality and safety in mind too !!! Lol
I'm hoping to some day soon, to have one of Jenny's batteries to call my very own,..
Jenny Mao
Active Member
- Region
- Asia
USD600 is best ever price for Dorado 25Ah with a 4amp charger, with shipping cost and custom tax all included in Alibaba March Promotion.
Jenny Mao
Active Member
- Region
- Asia
Agree, I think 52km with 2bars left, that is not bad. The battery cutoff voltage is about 39V. Also the discharging capacity is a bit less in low temperature riding.
In our mass production capacity testing, the 25Ah tested capacity under 10A discharging, is about 24.5Ah in Summer, and only about 23.8Ah in Winter.
Similar threads
