AEVA Forums

Ok this is similar to the Tricycle I have


now to save up for the motor gear.

I spent a lot on the donor vehicle, so will have to save up to proceed with motor project. In the mean time, I have discovered that Trike riding is a little harder than standard bike but Far More comfortable. I Love riding it and Im getting better at it. You can really feel the lower wind resistance...

I finally got my Recumbent trike. http://forums.aeva.asn.au/uploads/1082/images.jpg This is promo picture - mine has silver Cranks and Larger rear wheel / and Because I live in Miller [ home of the powered bicycle multiple fatalities ] mine has Lights / Reflectors / Flag with Reflective Tape all up ...

A very good friend of mine decided to sell his Trike. So I now have The original trike I wanted, in Red as well. Been riding small distances to get used to it. Will post some pics soon..... wonder if my son could be in the pics??? dont think Id like to share the " before shots ". Middle age spread c...

Altered Low cost electrical vehicle: Batteries LiFePo4/charger      $278 small DC motor                 $ 90 Controller/Throttle            $101                             ---------                                 469 + Tricycle                    $1600                            -----------      S...

Thanks, I am learning. Looked at the Headways. Pretty impressive. I cant put together a pack in the 15Ah like I was hoping for but here's the 10Ah     ,   20Ah ideas.... - 25.6V , 10Ah , 8s , 3.6Kg , In line 960mm long. $176 + Postage . - 22.6V , 20Ah , 7s2p , 6.3Kg ,                   $308 + Postag...

More "reasonably priced" battery options. .... http://forums.aeva.asn.au/uploads/1082/Silver15Ah.jpg LiFePO4 24V 15AH Battery 3A Charger BMS Rechargeable $209 ,   postage $69 Nominal Voltage                                  24V Voltage Range                                    25.2 - 26.8V Rated Capa...

Thank you all, for all the information.
Much appreciated.
This cheap battery quest is fraught with danger. I would have wasted my money twice over if I didnt get such good advice .

Oh, thanks for the tip. I thought these were 1000 cycle things. I imagine a years worth of commuting would be 210 cycles, so 4 sets of batteries a year would really "upset me ". Yes , I guess I could live with a little more weight in batteries, and I have looked at some of those comercial packs. The...

Most of the charging /balancing gear is for 2-6S , so these 7S batteries are a little awkward .. Is there a better way ? Accucel-8150 Lipoly/LiFe battery charger/Balancer. Spec. Operating voltage range: 11.0~18.0Volt Circuit power: max. 150W Charge current range: 0.1~7.0A Discharge current range: 0....

From Fake Fire off ebay to the highest fire risk battery [ but probably the Lightest too ] Hobby King Battery special 25C , budget battery. Spec. Capacity: 5000mAh Voltage: 7S1P / 7 Cell / 25.9V Discharge: 25C Constant / 35C Burst Weight: 818g (including wire, plug & case) Dimensions: 158x46x53mm Ba...

Tuarn , at least you have tested these , What was the mAh written on the battery Vs the actual torch run time figure ? Like that 70W torch running at 7A for 1 Hour - do you know the Claimed mAh..? Just saw some trust fire 26650 5000mAh batteries , if these are what you have then the actual Ah is gre...

Had a quick look for batteries and I found something reasuring, Turns out some have trustworthy written on the batteries themselves . . . There was     Trust Fire , Ultra Fire. , Fire Peak. , Tangs Fire, Mars Fire , Blazer , and Fenix - I think something about rising from the ASHES. !! I am positive...

THANK YOU so much.
I was impressed that they appeared so good as such a cheap price........
I will look again. Problem is , I won't trust any of the specs now.

then there's the rear one and wheel covers



Each additional slipstreaming device can add a couple of Km/h
at the same power input. Weight goes up too , so a stop start commute
doesnt gain as much from them.

My plans include improvements such as this Front Fairing



The fairing gives a little weather protection and reduces the wind resistance.

Very tempting, that is a nice electric bike Sam. Great value, and would solve some of my commuting route problems [ some barriers on my route are too Narrow ] . Its certainly got me thinking.

Thank you, I forgot about the effect of controller in limiting the current. Thank you for answering my questions. You are right - I would benefit more from lower gearing. Even if I could get the system working at the higher km/h , I would be more often in the lower speed range for my commute - where...

Some Questions; 1. is there a typical C rating for these 2400mAh Li-ion batteries? I know it depends upon internal resistance, but this info not given in advertisement. 2. The BMS has an overcurrent protection system. This motor I have chosen is capable of drawing 130A and blowing up controllers. If...

Now I'm hoping to attract some more of those "Learned Peoples" with some MathaMantics :) Rear wheel 700C circumference 2.120m Maximum target speed unachievable 40 km/h   so 40 000m / 60 = 666m / min That means rear wheel spins at 666m/2.12m /min = 314.465 RPM motor spins top speed 440RPM : 314.465RP...

Yes brushed motor, and the efficiency is only stated as >75 %   so a bit wasteful I think. I dont mind changing brushes occasionally [ although I cant see how you get at them ]. The higher efficiency Brushless were a tad heavy. [ but quieter & probably less maintenance] . The cost was also higher. J...

Tally of expected cost; Mota          $90 Batt Pack     $159.71 BMS           $ 46.98 Controller and throttle $101.90 charger       $50              ----------               $448.59 Trike        $ 1600             ------------ All up       $ 2048.59 Still requires . chain . cogs . waterproofing for ...

Drive format: I dont want parasitic load on the tricycle when pedalling only. [ no electric use ] So I decided upon an independent drive chain on the left side of rear wheel...a bit like .. http://forums.aeva.asn.au/uploads/1082/Dcwheel_chain.jpg So this would have a freewheel on the sprocket on the...

Charger:



24 volt 3 amp Lithium li-ion battery charger.
Australian distrib. $42 Postage $8   from Albury.

Next off Motor Controller:



Australian made 100A , tough, with thumb control potentio/ Hall effect.
Includes Thumb control.
$101.90 . Pick up Parramatta same place as motor.