Rs 450,000 to Make Your Tuk Electric, Save Rs 20,000/Month — Worth It?

A Sri Lankan company, LeMS, is back in the news for its battery-swap conversion: they pull the engine out of your petrol three-wheeler and fit an electric motor for about Rs 450,000. Instead of buying a battery, you swap a depleted one for a charged one in about two minutes and pay only for the energy you use, pay-as-you-go. Their numbers claim running costs drop to under Rs 15/km versus over Rs 20/km on petrol, which they say adds up to roughly Rs 20,000 saved a month. Swap stations are mainly around Colombo for now, with Galle and Kandy planned later. For a driver doing long daily mileage, that math can pay back the conversion in under two years. But Rs 450,000 is a second loan on top of whatever lease is already running on the tuk, and the whole plan only works if a swap station is actually near your route — outside Colombo you're stuck with no backup, unlike a petrol can you can carry. Would you take this loan against your tuk today, or wait until swapping reaches your area? If you've actually converted one, what was the real payback time? ලීටරයක් වෙනුවට චාජ් එකක් - ලාබදායීද, නැත්නම් තව ලෝන් එකක්ද?