Kev-sounds like they never got back you with a price. Hate when that happens. They did give me a price last week to rebuild my 48v 1000w. Ecotric Seagull battery. I posted that info on the Ecotric site for another guy with the same bike as mine with bad battery problems. I don't know what size battery you have but the price I was given was basically the same price as a new one. Difference being the rebuild would be done using high quality Samsung cells, with a 1 year warranty. A new one, from Ecotric, would contain the same low grade Chinese cells which I have now, with a 1.5 year warranty. That's the choice I have from them. It may be different in you're case. They can tell you how good the battery is that you now have and the best option. Like everything else the prices are up and if you want high quality it will cost more. I'd try contacting them again for a current price. Good luck. Let us know how it goes.