Science & Education
Battery Capacity Calculator
C = I·t both ways — runtime from capacity or capacity from runtime — with optional voltage for Wh and W.
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Quick start
Call this tool from your code in three languages.
cURL
curl -X POST 'https://api.elysiatools.com/en/api/tools/battery-capacity-calculator' \
-H 'Content-Type: application/json' \
-d '{"mode":"runtime","capacity":4500,"capacityUnit":"mAh","current":300,"currentUnit":"mA","runtime":48,"runtimeUnit":"h","voltage":3.85}'API reference
Send a POST request with your inputs as JSON. File parameters require a separate upload first.
Endpoint
HTTP
POST https://api.elysiatools.com/en/api/tools/battery-capacity-calculatorParameters
| Name | Type | Required | Description |
|---|---|---|---|
| mode | select | Yes | — |
| capacity | number | Yes | — |
| capacityUnit | select | Yes | — |
| current | number | Yes | — |
| currentUnit | select | Yes | — |
| runtime |
MCP integration
Add this tool to your Model Context Protocol server so AI agents can list and call it.
Server configuration
Add this block to your MCP client configuration:
mcp.json
{
"mcpServers": {
"elysiatools-battery-capacity-calculator": {
"name": "battery-capacity-calculator",
"description": "C = I·t both ways — runtime from capacity or capacity from runtime — with optional voltage for Wh and W.",
"baseUrl": "https://api.elysiatools.com/mcp/sse?toolId=battery-capacity-calculator",
"command": "",
"args": [],
"env": {},
"isActive": true,
"type": "sse"
}
}
}List available tools
After connecting to the SSE endpoint, list the exposed tools:
tools/list
{
"jsonrpc": "2.0",
"id": 1,
"method": "tools/list"
}Call this tool
Invoke the tool by its id, passing arguments built from its parameters:
tools/call
{
"jsonrpc": "2.0",
"id": 2,
"method": "tools/call",
"params": {
"name": "battery-capacity-calculator",
"arguments": {
"mode": "runtime",
"capacity": 4500,
"capacityUnit": "mAh",
"current": 300,
"currentUnit": "mA",
"runtime": 48,
"runtimeUnit": "h",
"voltage": 3.85
}
}
}Chain multiple tools in one session with a comma-separated toolId list, e.g. /mcp/sse?toolId=png-to-webp,jpg-to-webp,gif-to-webp (max 20).
Questions or issues? Contact [email protected]