OSRAM BATTERYstart 300 OBSL300 Review
See the methodology and listed sources for the scope of this page’s research.
Historical offer check: 4 Sep 2026. Current price and availability not verified.
Who this is for
Drivers prioritising a compact, documented 12V unit from an established automotive-lighting and accessories brand.
Who should avoid it
Choose the GOOLOO A3 for larger engines or inflation, or the AstroAI S8 for a lower dated price and a higher published operating ceiling.
How we assessed this
Editorial research only. We checked the exact Amazon.ae offer and compared it with first-party manufacturer documentation; TopTenUAE did not conduct hands-on testing.
UAE availability and ownership
- Availability
- In stock, sold and shipped by Amazon.ae when checked on 4 September 2026. Reconfirm availability at checkout.
- Shipping
- Amazon.ae displayed UAE delivery when checked; live delivery timing can change.
- Warranty
- The offer displayed a one-year manufacturer warranty. Confirm current UAE eligibility and claim handling before purchase.
- Compatibility
- 12V vehicles only. The OSRAM manual publishes −20°C to 40°C operation and warns against extreme heat; separate charge and storage ranges were not found.
Sources
- BATTERYstart 300 OBSL300 — OSRAM (source accessed 4 September 2026)
- BATTERYstart 200 / 300 user instruction — OSRAM (source accessed 4 September 2026)
- OSRAM BATTERYstart 300 Amazon.ae listing — Amazon.ae (source accessed 4 September 2026)
The Good
- Official manual and product sheet publish unusually specific current figures
- Compact 168 × 88 × 33mm body
- The checked offer was sold and shipped by Amazon.ae
Watch Out
- Highest dated price in the shortlist
- The 40°C operating ceiling requires special caution in UAE summer conditions
- No integrated compressor and no separately published storage-temperature range
Technical Specifications
| Vehicle system | 12V only |
| Engine rating | Up to 6.0L petrol / 3.0L diesel |
| Current | 300A for 3 seconds; 1500A peak for 0.1 seconds |
| Battery | 13,000mAh lithium-cobalt (LiCoO2) |
| Operating temperature | −20°C to 40°C |
| Charging temperature | Not separately published in the reviewed manual |
| Storage temperature | Not separately published in the reviewed manual |
| Charging | USB-C; approximately 3 hours |
Why we picked this
"Best compact premium pick for buyers who value detailed OSRAM documentation, smart clamps and a current Amazon.ae-sold offer."
Key Features
- 300A starting current
- 1500A peak current
- Up to 6.0L petrol or 3.0L diesel
- 13,000mAh LiCoO2 battery
- Smart safety clamps and boost function
- LED light and two USB outputs
Limitations to know
"Skip it if you need more than 6.0L petrol or 3.0L diesel support, a built-in compressor, or operation above the manual’s 40°C ceiling."
