Gorillazilla
10 W
- Joined
- Sep 26, 2021
- Messages
- 90
I went looking for a dependable quality charger for a good price a while back and couldn't find anything suitable as discussed here, Link: Please help find the elusive ebike charger
So I made my own....
Just thought other folks might want them too so I've started assembling them to a high standard.
£50 posted to anywhere in the UK including fees.
Can post anywhere in the world too as it can handle any AC voltage and frequency with the appropriate plug adapter or straight up mains lead replacement, but would have check postage.
If you cannot find the adaptor from XT60 to the connector needed for your battery then I can order in what is needed and solder them up for the cost of parts. Just ask on the thread.
48v ebike battery charger fanless silent waterproof, charge level adjustable to 90% 80% 50% ect.
3.9 Amp 48v lithium ion charger suitable for battery packs consisting of 18650 cylindrical style or similar li-ion cells with a max voltage of 4.2v per cell in 13s configuration.
Massively extends battery life
With the ability to be adjusted to charge your battery to only 90% 80% and 50% storage charge, the life of your expensive battery packs can be greatly extended.
Charging your battery to only 80% and not discharging below 20% may double the total mileage you can get out of your batteries before wearing them out.
The charge rate is also fully adjustable from 1A up to 3.9A so you can fast charge when needed yet also slow charge to further increase battery longevity.
Fanless
No fan to fail, extreme reliability and long lasting with a 7 year warranty included.
Silent
Not reliant upon fans to remain in an optimal operating temperature, perfect for charging the battery of your commuter ebike at work without disturbing you or your colleagues.
Reliable
At the heart of this charging system is the well known and highly renowned Meanwell HLG-185h-48a constant current, constant voltage power supply.
Shock proof, vibration proof and waterproof this beefy fully potted unit is rated for over sixty thousand hours of operation at 3.9 Amps
PDF Datasheets with further details on this superb powerhouse are easily found online through web search.
Combined with no fan to fail unpredictably and cause destruction through overheating, this will likely be the last 48v ebike charger you will ever need to buy.
Safe
The HLG-185h-48a has been chosen specifically due to its maximum voltage being incapable of exceeding the voltage required for fully charging a 48v 13s li-ion battery based on 18650 and similarly rated cells, hence incapable of overcharging your battery.
Waterproof
Suitable for use in humid outdoor environments and can even be fitted directly onto your bike if needed, without fear of damage from rain or water spray.
Notes:
To adjust settings, remove the two black rubber plugs and use a small screwdriver to rotate the internal dials.
Observe the LCD and adjust the voltage (vo adj) for the desired corresponding charge level without a battery connected.
53.98v = 97% (impossible to charge over 100% so completely safe even if the batteries BMS malfunctions and fails to cut off after the battery is fully charged)
52.78v = 90%
51.74v = 80%
50.96v = 70%
50.31v = 60%
49.65v = 50%
Adjust amperage (lo adj) after connecting battery, 1A by default. Do not adjust the amperage above 3.9A as this may reduce the lifespan of the unit.
Every 10 charges you should fully charge your battery to 95%+ as some Battery management systems do not balance your cells below 90% charge.
Fitted with XT60 connectors, adaptors for which can easily be found to convert to almost any other connector.
2 metre mains lead, 1.5m charge lead.
The charger itself is completely waterproof and the mains plug has been treated with CorrosionX dielectric grease to resist corrosion.
However the LCD screen unit used to monitor adjustments is NOT waterproof, after adjusting to the desired settings it will need to be disconnected and stored appropriately if using the charger where exposure to moisture may occur.
If exposed to water, ensure the exterior of the mains plug is wiped dry before use.
So I made my own....
Just thought other folks might want them too so I've started assembling them to a high standard.
£50 posted to anywhere in the UK including fees.
Can post anywhere in the world too as it can handle any AC voltage and frequency with the appropriate plug adapter or straight up mains lead replacement, but would have check postage.
If you cannot find the adaptor from XT60 to the connector needed for your battery then I can order in what is needed and solder them up for the cost of parts. Just ask on the thread.




48v ebike battery charger fanless silent waterproof, charge level adjustable to 90% 80% 50% ect.
3.9 Amp 48v lithium ion charger suitable for battery packs consisting of 18650 cylindrical style or similar li-ion cells with a max voltage of 4.2v per cell in 13s configuration.
Massively extends battery life
With the ability to be adjusted to charge your battery to only 90% 80% and 50% storage charge, the life of your expensive battery packs can be greatly extended.
Charging your battery to only 80% and not discharging below 20% may double the total mileage you can get out of your batteries before wearing them out.
The charge rate is also fully adjustable from 1A up to 3.9A so you can fast charge when needed yet also slow charge to further increase battery longevity.
Fanless
No fan to fail, extreme reliability and long lasting with a 7 year warranty included.
Silent
Not reliant upon fans to remain in an optimal operating temperature, perfect for charging the battery of your commuter ebike at work without disturbing you or your colleagues.
Reliable
At the heart of this charging system is the well known and highly renowned Meanwell HLG-185h-48a constant current, constant voltage power supply.
Shock proof, vibration proof and waterproof this beefy fully potted unit is rated for over sixty thousand hours of operation at 3.9 Amps
PDF Datasheets with further details on this superb powerhouse are easily found online through web search.
Combined with no fan to fail unpredictably and cause destruction through overheating, this will likely be the last 48v ebike charger you will ever need to buy.
Safe
The HLG-185h-48a has been chosen specifically due to its maximum voltage being incapable of exceeding the voltage required for fully charging a 48v 13s li-ion battery based on 18650 and similarly rated cells, hence incapable of overcharging your battery.
Waterproof
Suitable for use in humid outdoor environments and can even be fitted directly onto your bike if needed, without fear of damage from rain or water spray.
Notes:
To adjust settings, remove the two black rubber plugs and use a small screwdriver to rotate the internal dials.
Observe the LCD and adjust the voltage (vo adj) for the desired corresponding charge level without a battery connected.
53.98v = 97% (impossible to charge over 100% so completely safe even if the batteries BMS malfunctions and fails to cut off after the battery is fully charged)
52.78v = 90%
51.74v = 80%
50.96v = 70%
50.31v = 60%
49.65v = 50%
Adjust amperage (lo adj) after connecting battery, 1A by default. Do not adjust the amperage above 3.9A as this may reduce the lifespan of the unit.
Every 10 charges you should fully charge your battery to 95%+ as some Battery management systems do not balance your cells below 90% charge.
Fitted with XT60 connectors, adaptors for which can easily be found to convert to almost any other connector.
2 metre mains lead, 1.5m charge lead.
The charger itself is completely waterproof and the mains plug has been treated with CorrosionX dielectric grease to resist corrosion.
However the LCD screen unit used to monitor adjustments is NOT waterproof, after adjusting to the desired settings it will need to be disconnected and stored appropriately if using the charger where exposure to moisture may occur.
If exposed to water, ensure the exterior of the mains plug is wiped dry before use.
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