pmski Posted March 15, 2015 Report Share Posted March 15, 2015 I have bought the KTM Freeride - E. I know it's not a trials bike but after seeing my son take his Lipo'd Oset 20 to places a petrol bike can't go I was sold on an e bike. Almost bought the EM5.7 but the lack of dealer support put me off, the KTM has a 3 year warranty on battery and charger and a 2 year warranty on the bike itself plus the backing of the biggest player in dirt bikes. Anyway, my van has a 12v power output and I was thinking I could run an inverter to recharge the bike whilst I have a break - full charge is just over an hour. Realise I am likely to have to run the engine as I do this. On fast charge I need a constant output of at least 13 A and on normal charge 10 A is required. I have no idea what wattage I will need so am trying to understand what to look for in an inverter and if it even possible to run the charger from this power source. If that is not possible I thought about using a petrol generator, but agin need advice on what to look for. Thanks in advance for any advice Quote Link to comment Share on other sites More sharing options...
Andy Posted March 15, 2015 Report Share Posted March 15, 2015 I know the inverter I have in the motorhome gobbles battery even just charging the laptop off it and it's not drawing anything like 13A. You might want to consider a second "leisure" battery for this, wired up appropriately so it charges when engine running. Alternately, if you're going to have to run the engine, then a cheap generator is probably a better solution. I have this one - http://www.amazon.co.uk/dp/B004CRP1K6/ref=pe_217191_31005151_3p_M3_dp_1. Good reviews, been totally reliable, pretty quiet, runs for ages on a tank of petrol and many times cheaper than the Honda equivalent. They do a bigger 2.2kw version - https://www.machinemart.co.uk/shop/product/details/clarke-ig2200-2-2kw-inverter-generator?da=1&TC=GS-010612200 Quote Link to comment Share on other sites More sharing options...
gudah Posted March 15, 2015 Report Share Posted March 15, 2015 Congrats to a cool bike! Quickmath says that 230volts and 10 amps is 2300watts while standardcharging. 2300watts @ 12 volts is approx 200 amps and thats not doable in a good way from a 12v carbattery so i recommend a petrolgenerator as suggested above. Interesting to see what kind of runtime the ktm has please feedback on that later. Quote Link to comment Share on other sites More sharing options...
pmski Posted March 15, 2015 Author Report Share Posted March 15, 2015 Thanks guys, thought I would need a petrol generator. Had the bike a week now and really rate, it's performance is good. In terms of run times, if I am using it like an MX bike, throttle wide open then I get 40 mins. If it's more trail/technical riding then 1.5 hours is possible. Its charge time is fast, 50 mins gets to 80% charge and just over an hour is full charge. It is very agile, and you can really throw it around, so far I am impressed - it's performance is better than expected. Quote Link to comment Share on other sites More sharing options...
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