Keep the chargeSpecifications
| Brand | Optima |
| Trade name | RT U 4.2 RedTop |
| Type | Spirallcell® |
| Length | 254 mm |
| Width | 172 mm |
| Height | 200 mm |
| Capacity | 50 Ah |
| Cranking amps | 1000 A |
| Maintenance | not require |
| Rated voltage | 12 V |
| Manufacturer | Mexico |
| Warranty / Service | 36 months |
| Price per | pcs |
| Brutto, package size | 18,4 kg, 254 / 172 / 200 mm |
Terms of payment
You can buy battery Optima RT U 4.2 RedTop in Kyiv and other cities (courier delivery around the city and Ukraine). Possible cashless payment, online payment by credit card Visa / MasterCard or payment for order upon receipt.
Description battery Optima RT U 4.2 RedTop
| STARTING BATTERIES | ||||||
| MODEL NUMBER | RT S 4.2 RT R 4.2 |
RT F 4.2 | RT U 4.2 | RT U 3.7 | RT S 3.7 RT R 3.7 |
RT S 2.1 |
| PERFORMANCE | ||||||
| Voltage (V) | 12 | 12 | 12 | 12 | 12 | 6 |
| Cold Cranking Amps @ -18°C (A) | 815 | 815 | 815 | 730 | 730 | 800 |
| Cranking Amps @ 0°C (A) | 1000 | 1000 | 1000 | 910 | 910 | 1000 |
| Reserve Capacity (Minutes) | 100 | 100 | 100 | 90 | 90 | 100 |
| Capacity (C/20 Rate)(Ah) | 50 | 50 | 50 | 44 | 44 | 50 |
| Internal Resistance (ohms) | 0,003 | 0,003 | 0,003 | 0,003 | 0,003 | 0,0019 |
| PHYSICAL SPECS | ||||||
| Length (mm) | 254 | 254 | 254 | 237 | 237 | 254 |
| Width (mm) | 172 | 185 | 172 | 172 | 172 | 83 |
| Height (mm) | 200 | 184 | 200 | 197 | 197 | 200 |
| Mimimum Weight (kg) | 17,2 | 17,5 | 17,6 | 15 | 14,4 | 8,4 |
| Type Terminal | SAE | GM | Dual SAE & GM |
Dual SAE & GM |
SAE | SAE |
| BCI Group | 34 & 34R | 78 | 34/78 | 75/35 | 25 & 35 | - |
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Optima RT U 4.2 RedTop 
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