{"id":1850,"date":"2026-04-08T06:32:03","date_gmt":"2026-04-08T06:32:03","guid":{"rendered":"https:\/\/ovartech.com\/?p=1850"},"modified":"2026-04-08T06:43:20","modified_gmt":"2026-04-08T06:43:20","slug":"how-to-choose-obc-power","status":"publish","type":"post","link":"https:\/\/ovartech.com\/ko\/how-to-choose-obc-power\/","title":{"rendered":"Complete Guide\uff1aHow to Choose OBC Power? Which Scenarios Suit 3.3kW, 6.6kW, 11kW, and 22kW On-Board Chargers?"},"content":{"rendered":"

How to Choose OBC Power? Which Scenarios Suit 3.3kW, 6.6kW, 11kW, and 22kW On-Board Chargers?<\/strong><\/span><\/h1>\n

Selecting the correct On-Board Charger (OBC) power level is crucial for balancing charging speed, cost, weight, and overall vehicle performance. The four common options \u2014 3.3kW, 6.6kW, 11kW, and 22kW \u2014 each serve different vehicle types and usage scenarios.<\/span><\/p>\n

Here\u2019s a practical guide to help you make the right choice.<\/span><\/p>\n

OBC Power Level Comparison Overview<\/span><\/strong><\/h2>\n\n\n\n
\"\"<\/a>Figure 1: OBC Power Levels Comparison <\/span><\/strong><\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Detailed Guidance for Each Power Level<\/span><\/strong><\/h3>\n

3.3 kW OBC<\/strong><\/span><\/p>\n

Best suited for small city cars, plug-in hybrids, and budget EVs with smaller batteries. Ideal for users with very light daily driving needs or limited home electrical capacity.<\/span><\/p>\n

Advantage:<\/strong> Lowest cost and lightest weight.<\/span>
\nLimitation:<\/strong> Slow charging speed.<\/span><\/p>\n

6.6 kW OBC \u2014 The Most Popular Choice<\/strong><\/span><\/p>\n

This is the sweet spot for the majority of passenger electric vehicles, including compact sedans, crossovers, and family SUVs with 50\u201380 kWh batteries. Most private owners can fully charge overnight with a 6.6 kW OBC.<\/span><\/p>\n

Ovar Tech offers both single 6.6 kW OBC and integrated 6.6 kW OBC + 1.5\/2 kW DC-DC solutions that deliver excellent efficiency and reliability.<\/span><\/p>\n\n\n\n
\"\"<\/a><\/p>\n

Figure 2: Ovar Tech On-Board Charger Solution<\/span><\/strong><\/span><\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

11 kW OBC<\/span><\/strong><\/p>\n

Suitable for premium sedans, larger SUVs, and vehicles with bigger batteries (80 kWh+). It provides noticeably faster AC charging and works well in homes or offices with 3-phase power.<\/span>
\nOvar Technology\u2019s 11 kW OBC + 3 kW DC-DC integrated modules are particularly popular in commercial and premium passenger vehicle applications.<\/span><\/p>\n

22 kW OBC<\/span><\/strong><\/p>\n

Designed for high-performance EVs, luxury cars, taxis, delivery fleets, and vehicles that require very fast AC charging. It offers the fastest possible AC charging speed but comes with higher cost and weight.<\/span><\/p>\n

Key Factors to Consider When Choosing OBC Power<\/span><\/strong><\/h4>\n