Carrera Subway E battery

[Ry_BM26]

Hi everyone, I’m a little new to e bikes. Just got myself a Carrera Subway E this week from Halfords. I’ve noticed I’m only getting about 20 miles out of the battery when fully charged and only using the eco setting. This seems wildly different to what I’ve seen other people saying they get. I know the whole advertised 60 miles is just an “up to” and realistically that’s never going to happen but I was hoping to get at least 30 out of it (since that’s my return journey to and from work). At the moment I’m doing most of the home journey without any assistance at all which while not impossible, also kinda defeats the point of buying the bike in the first place.

I’m just wondering if this capacity is normal or is there an issue with the bike/battery itself? When I went to collect the bike they had to get a new battery from the back because the original one they gave me didn’t even turn on after they had apparently charged it for several hours.

I second battery is near £500 and they also don’t have any in stock near me at the moment, I also can’t seem to find any third party alternative because of the connection type.

Any advice would be greatly appreciated.

 

[cyclebuddy]

Checking Halfords website just now, it says the battery capacity is 317Wh. That's a smaller battery than you'd usually find on most e-bikes today. I'd say your 20ish miles is probably about right if you're using the higher assist levels.

If your dilemma is running out of assist on your way home from work, it'd probably be an idea to either take your charger with you and recharge your battery at work, or buy a second charger for work (which is what many do).

£500 for a 317Wh replacement battery is absurd!

 

[thelarkbox]

if google led me to the right bike??

 

[thelarkbox]

---If you need to a £100 control system replacement looks easy enough to apply opening the bike up to using £200 generic high quality battery packs.

 

[matthewslack]

All up weight of you and the bike, hillyness, speed would allow refinement of range estimates.

My rule of thumb is 16Wh per mile should be plenty, and 10 is often enough, so 20 miles is borderline low for normal conditions, and a bit disappointing if you only use eco.

If your route ends uphill that would possibly drag the battery down to low voltage cutoff before completely empty.

My completely different style of bike - Shimano mid-drive, 400Wh battery, 67kg rider + 27kg bike + 15kg load - in eco on flat terrain without headwind at average of 20km/h manages about 50 miles.

 

[saneagle]

My rule of thumb is that a not particularly fit 90kg rider on fairly hilly ride should get about 30 miles with medium assistnce. That's what I got with my first ebike, where the motor just went full power whenever you pedal. The fitness of the rider, weight of the rider and the steepness of the hills all have a significant effect on the range in both directions.

 

[Ry_BM26]

My rule of thumb is that a not particularly fit 90kg rider on fairly hilly ride should get about 30 miles with medium assistnce. That's what I got with my first ebike, where the motor just went full power whenever you pedal. The fitness of the rider, weight of the rider and the steepness of the hills all have a significant effect on the range in both directions.

Thanks for the insight. I’m relatively fit I would say, I weight about 65kg (I’m very short) and only use the lowest assistance level. My route to and from work isn’t particularly hilly at all and mostly flat. The only hill I’d say would be my street, that’s rather steep but the battery is long dead by the time I get there. My work bag is no more than 5kg if that (I do keep my bike lock in the bag). 20 miles is sounding rather low compared to what it should be able to do tbh.

 

[Ry_BM26]

if google led me to the right bike??

yeah that’s the bike. I have the women’s version coz I’m too short for the men’s but they pulled a battery from the men’s bike since the original battery wouldn’t turn on.
I know next to nothing about the electrical systems so I’m not sure I’d be confident enough to open the bike up myself