August 27, 20187 yr Dear all, I have a 36V 20Ah battery which is still working (bought from BMSb a few years ago). I got 2 chargers with it, which both deliver approximately 2.5A at 36V (or 42V as it appears to be). They work well, but are very noisy - the small onboard fan spins up an creates quite a noise. The chargers I have are similar to this link, with a UK plug on 1 end, and a 3 pin female IEC ?C13? plug on the other for connecting to the battery) https://bmsbattery.com/ebike-charger-ev-charger/23-alloy-shell-180w-lifepo4-li-ion-lead-acid-battery-ebike-charger-ecitypower-charger.html I would like to get a charger without such a noisy fan for use at work - even if it will be lower power and therefore take longer to charge the battery. Does anyone know of a suitable charger? Also does anyone know of the pinouts to connect to the battery if I need to buy one without the correct IEC connector on the end? Thanks in hope, Phil
August 27, 20187 yr Jimmy at Insat Int, the chap who does battery re-celling sells chargers. https://www.ebay.co.uk/itm/King-Pan-Insat-Li-ion-Ebike-Battery-Chargers-29-4V-42-0V-54-6V-2A-84V-4A/331705055471?hash=item4d3b2978ef:m:m75XTR7nazgCxbCBoW-77mA Same guy https://ebikebatteries.co.uk/product/lithium-ion-battery-charger-2a-36v/ These are fanless chargers and they do get quite hot when charging. Edited August 27, 20187 yr by wheeliepete
August 27, 20187 yr If it's only 2.5a I'm sure you could just remove the fan. But something like this should do and is fanless. https://www.ebay.co.uk/itm/42V-2A-Power-Adapter-Charger-Two-wheel-Balanced-for-36V-Li-ion-Lithium-Battery/323280977859?epid=675316974&hash=item4b450c3fc3:g:4ykAAOSwVttbD1md If the battery connector is the big kettle style you can change the chargers plug for one of these like I did. https://www.ebay.co.uk/itm/IEC-Female-Inline-Rewirable-Socket-Adapter-Plug-10A-Disco-Lights-Kettle-Lead/132688225015?hash=item1ee4d5a2f7:g:TKgAAOSwWOxbO3yO To work out the pinout's I just used a multimeter on the battery's left+right pins. The middle pin is not used. Cut the charger plug off and line up the plug+socket and connect the red/black to the relevant sides. Edited August 28, 20187 yr by awol
August 28, 20187 yr I've been using gophert for few years now... Very reliable and absolutely silent: https://rover.ebay.com/rover/0/0/0?mpre=https%3A%2F%2Fwww.ebay.co.uk%2Fulk%2Fitm%2F141389291960 I liked them so much I bought 2
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