Out of interest what make of electric trolley have you got. My suggestion would be to invest in a go-kart as their customer service is arguably the best anywhere in the golfing sector and is certainly in the top 3 of any company I've ever dealt with and so if there is a problem you'll get expert help to fix it.
I've had a few trolleys over the years. I'd been using a lightweight off and on and decided to get a sturdy trolley about 5 weeks ago. Managed 3-4 round with it and gave up....big trolleys (cheap ones) are heavy and slow....
However, undeterred, I got a Powakaddy Twinline 3 (2009) and have loved it from day one.....easily worth the extra cost.
Don't waste your cash on a cheap one, unless it's a lightweight one. If you fancy something big, posh and high quality.....there's only one answer.
I use a Clic Gear trolley when not using the GoKart and is well worth the extra cost. Never had a problem with it and has a really sturdy brake if your course is hilly
I've just taken delivery of the new Sun Mountain Micro Cart which is a real radical 4 wheel design. I used it over the weekend and have to say it performed admirably. The build quality is superb and must rate as high as any other non-electric trolley out there from Powerkaddy, Clic Gear etc. It was a bit pricey but I think it was worth it.
Another vote for the Powerkaddy Twinline 3. Quality bit of kit that folds up really small. I can get all my kit - trolley,bag, clubs etc in the boot of a Citroen C3!!