vido Posted August 25, 2015 Share Posted August 25, 2015 Hey guys, on the official ninebot site it states you can purchase a 250w super charger which will charge your device 50% faster. I've search every where with no luck. Anyone know where I can purchase one? Thanks in advance! Link to comment Share on other sites More sharing options...
Gimlet Posted August 25, 2015 Share Posted August 25, 2015 Fast charging is not a great idea unless you have a particular need for it. Generally the faster you charge the batteries the more you reduce their long term vability so if you want your expensive batteries to last charge them slowly.Depending on size of battery as any charge is obviously split between the cells of course. Link to comment Share on other sites More sharing options...
vido Posted August 25, 2015 Author Share Posted August 25, 2015 Fast charging is not a great idea unless you have a particular need for it. Generally the faster you charge the batteries the more you reduce their long term vability so if you want your expensive batteries to last charge them slowly.Depending on size of battery as any charge is obviously split between the cells of course.Does this also affect Samsung Galaxy s6?since it comes with a fast charger out of the box Link to comment Share on other sites More sharing options...
EUC Extreme Posted August 25, 2015 Share Posted August 25, 2015 If you have a small battery. only 16 cells. Quick charging slightly shortens battery life. However, radically.But if there is even 2 or more cells in parallel, not half faster charging in any way affect the battery life span ..If you downloaded 2 or 4 amps per side by side in the cell. There is no reason for concern.18650 batteries can withstand it. Link to comment Share on other sites More sharing options...
vido Posted August 25, 2015 Author Share Posted August 25, 2015 If you have a small battery. only 16 cells. Quick charging slightly shortens battery life. However, radically.But if there is even 2 or more cells in parallel, not half faster charging in any way affect the battery life span ..If you downloaded 2 or 4 amps per side by side in the cell. There is no reason for concern.18650 batteries can withstand it.So are you saying a 250w charger wouldn't decrease the battery life of a 340wh for ninebot one? Link to comment Share on other sites More sharing options...
EUC Extreme Posted August 25, 2015 Share Posted August 25, 2015 My minor knowledge and experience, I would say that, would not significantly affect life span. It is quite safe to download. High-quality batteries can take it. Link to comment Share on other sites More sharing options...
Rotator Posted August 26, 2015 Share Posted August 26, 2015 My minor knowledge and experience, I would say that, would not significantly affect life span. It is quite safe to download. High-quality batteries can take it.I agree with you. Probably regenerative break will charge the batteries beyond the current of this quick charger.Ninebot E (240w) and E+ (340w) are both 2P batteries, so not problem. Link to comment Share on other sites More sharing options...
Thomas Faale Posted August 26, 2015 Share Posted August 26, 2015 It is no problem charging these medium sized batteries faster than 3 hours. The problem is where can we buy the rapid charger 9b is advertising? Link to comment Share on other sites More sharing options...
Jason McNeil Posted August 26, 2015 Share Posted August 26, 2015 @vee73 is right, all of the KS 800W 680Wh Wheels we will be offering will include a 268.8W, 4A charger fast-charger as standard, reducing the charging time to around 2hrs. This charge rate is still 25% below LG's recommended standard & are capable of charging at twice this... Link to comment Share on other sites More sharing options...
Chriull Posted August 26, 2015 Share Posted August 26, 2015 Just as remark: If you charge the accu pack just to ~85% it will take much less time and increase the accu life time! So if you do not need the full capacity for the next run you have the fast charger already at home From http://batteryuniversity.com/learn/article/charging_lithium_ion_batteries :"Some lower-cost consumer chargers may use the simplified “charge-and-run” method that charges a lithium-ion battery in one hour or less without going to the Stage 2 saturation charge. “Ready” appears when the battery reaches the voltage threshold at Stage 1. State-of-charge (SoC) at this point is about 85 percent, a level that may be sufficient for many users.Avoiding full charge has benefits, and some manufacturers set the charge threshold lower on purpose to prolong battery life. Table 2 illustrates the estimated capacities when charged to different voltage thresholds with and without saturation charge." Link to comment Share on other sites More sharing options...
Rotator Posted August 26, 2015 Share Posted August 26, 2015 According to this table, the voltage of the charger (61V if my memory does not fail), and the battery cells (15S 2P), the battery is only charged until 85-90%.This will leave a safety margin, and would allow a downhill starting after charged (refilling through regenerative break).Since I did not check the charger output voltage, it is just an assumption. Link to comment Share on other sites More sharing options...
Rotator Posted September 1, 2015 Share Posted September 1, 2015 According to this table, the voltage of the charger (61V if my memory does not fail), and the battery cells (15S 2P), the battery is only charged until 85-90%.This will leave a safety margin, and would allow a downhill starting after charged (refilling through regenerative break).Since I did not check the charger output voltage, it is just an assumption.Wrong assumption.The voltage specification in the charger label is 61v.But the voltage suplied by the charger is 63v. Since 63v=15cell*4.2v, this charger appears to re-fill the batteries to the 100%. So there would be no safety margin for begining a downhill regenerative break.Anyway, I do not know what the BMS does with the charger voltage. It could cut off the charge before reaching 100%. Even if this was not the case, may be begining the downhill will be got through heat disipation instead of regenerative battery charging. Link to comment Share on other sites More sharing options...
Jason McNeil Posted September 1, 2015 Share Posted September 1, 2015 Ideally all 'good' eWheel would have sub-1hr charging time with the option to limit charging to 80% of the pack's capacity. There's sources that state that if the cell is charged to 4.05v instead of the usual 4.2v it will increase the lifespan by 4 times! Don't know if the typical BMS can deal with 4.05v charging, in 'passive cell balancing', charging stops when the cell hits the V ov threshold. Maybe it doesn't really matter all that much with enough cells—those that are slightly below will 'catch-up when voltage reaches their charged rate. The latest, sexist cells like the HG2 have a fast-charge spec of 4A! Sub-30 minutes for low battery (not completely dead) is certainly well within the realm of possibility for modern batteries. http://batterybro.com/blogs/18650-wholesale-battery-reviews/57179459-lg-hg2-review-20a-3000mah Link to comment Share on other sites More sharing options...
EUC Extreme Posted September 1, 2015 Share Posted September 1, 2015 In my world, the final charging voltage can be adjusted to any voltage and charging current is 120A if desired Link to comment Share on other sites More sharing options...
dmethvin Posted September 1, 2015 Share Posted September 1, 2015 120A??? Is that a battery charger or an arc welder? Link to comment Share on other sites More sharing options...
EUC Extreme Posted September 1, 2015 Share Posted September 1, 2015 Indeed, I do I Gotway 18inch batteries 120 amperes 900wh lipo batteries is fulfilled in a few minutes. Charging vehicles to the network of about 5000W Link to comment Share on other sites More sharing options...
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