e loader battery:the India cargo 3 wheeler and box-body platform

e loader is the Indian name for a cargo three-wheeler, the equivalent of cargo tricycle or cargo three-wheeler elsewhere, and a completely separate product line from the passenger e-rickshaw: an e-rickshaw carries people, an e loader carries goods. Indian operators subdivide it further by body style — porter (open cargo deck, tip-side, used for quick unloading in wholesale markets), loader rickshaw (covered cab with a rear box, the standard last-mile delivery shape), box-body (fixed enclosed box for food, pharma and courier work), and the flatbed tipper common on construction sites.
Chinese suppliers almost all build for the words “cargo tricycle”, so the local term e loader is left unserved. This page treats both as one vehicle platform but keeps the configuration bands tied to Indian payloads and body styles.

• Not an e-rickshaw: a passenger three-wheeler carries four to five people at roughly 55–68 Wh/km; an e loader carries freight at 95–125 Wh/km, roughly double, so the pack must be specified as motive grade.
• Porter: open deck and a high centre of gravity, so pull-away and potholes produce sharp shock loads — steel enclosure and vibration-proof fixing matter more than raw capacity.
• Loader rickshaw and box-body: a fixed box adds frontal area and the daily trip count is higher, so continuous discharge capability and capacity both have to be right.
• For international buyers: quoting an e loader is enough — state the payload and the body style and we configure it on the cargo tricycle platform without the terminology getting in the way.

The highest current in the whole driving cycle appears in the first second or two of a loaded pull-away — and a gradient then asks that current to be sustained rather than momentary. The platform rating is 150–250A continuous with 3C peak for short climbs, and both conditions have to be met together: satisfy the transient only and the vehicle feels weak off the line, satisfy the continuous only and it cuts out mid-climb.

• Pull-away transient: the controller draws to its current limit, and a loaded start on the flat is electrically the same event as a start on a 15° ramp. Too much terminal voltage sag trips under-voltage protection immediately.
• Sustained climb: low-speed high-torque operation raises polarisation and temperature together, which is the main reason loaded range falls and protection triggers — see uphill cut-off and BMS current limit diagnosis.
• Stop-start frequency: six to ten loaded trips a day in wholesale and construction work keeps the BMS near its over-current decision boundary, where a multi-stage stepped algorithm is far less likely to latch than a single static threshold.
• Heat on top of load: Indian summer surface temperatures plus an enclosed battery bay accumulate heat. The platform window is −20°C to 65°C with thermal derating at the top end, so the configuration needs headroom.