A 24 V unit for a semi or bus: 13,000 BTU on 900 W is a stretch, but 45 A to start is easy on a 24 V system.
Amazon $499The AClengda 24V 13000 BTU Split AC is the better parking air conditioner overall, rated 2.9 to 2.5. The AClengda 24V 13000 BTU Split AC leads on value. The AClengda 24V 13000 BTU Split AC costs $180.70 less ($499 vs $679.70).
Prices were last checked November 9, 2026. Product prices and availability are accurate as of that date and are subject to change; the price and availability shown on Amazon or the retailer's site at the time of purchase apply. As an Amazon Associate we earn from qualifying purchases.
A quiet 18 cc inverter unit for 24 V trucks, at the highest price of the split units.
Amazon $679.70Which should you buy?
- Choose the AClengda 24V 13000 BTU Split AC for value ($50.40 per 1,000 BTU ($499, 9,900 BTU credited of 13,000 claimed) vs $73.88 per 1,000 BTU ($679.70, 9,200 BTU)).
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every 24V split parking air conditioner; a clear win is highlighted. How we rank explains each one.
| Factor weight | AClengda 24V 13000 BTU Split AC | KNOLET 24V 9200 BTU Split AC |
|---|---|---|
| Overall rating | 2.9/5 | 2.5/5 |
| Value 35% | 40 $50.40 per 1,000 BTU ($499, 9,900 BTU credited of 13,000 claimed) | 7 $73.88 per 1,000 BTU ($679.70, 9,200 BTU) |
| Efficiency 20% | 100 14.4 BTU claimed per watt in (900 W), above what a battery-powered compressor delivers, so the claim is not credited further | 50 input power not published (neutral score used) |
| Noise 15% | 50 noise rating not published (neutral score used) | 76 46 dB listed for the indoor unit |
| Features 20% | 0 none listed | 25 1 of 4: inverter compressor |
| Warranty 10% | 0 warranty not published, scored as none | 0 warranty not published, scored as none |
Specifications
| AClengda 24V 13000 BTU Split AC | KNOLET 24V 9200 BTU Split AC | |
|---|---|---|
| Cooling and power | ||
| Claimed cooling | 13,000 BTU | 9,200 BTU |
| Supply voltage | 24 V | 24 V |
| Input power | 900 W | - |
| Starting current | 45 A | - |
| Build | ||
| Layout | Split, two units | Split, two units |
| Compressor | - | 18 cc |
| Inverter compressor | - | Yes |
| Ships charged with refrigerant | No | No |
| Controls, noise and warranty | ||
| Indoor noise | - | 46 dB |
