OPTIMA RedTop 34 AGM Starting Battery
- 12-volt, 800 CCA
- 100 minutes reserve capacity
- 50 AH C20 capacity
- 10.06 x 6.88 x 7.88 in, 37.9 pounds
- SAE posts, mounts in many positions
- 15x vibration resistance, up to 3x life vs flooded
Last refreshed Sep 11, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A sealed AGM starting battery with strong cranking power and high vibration resistance for trucks, hot rods and off-roaders. Warranty terms are not given on this listing.
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ASIN: B000MS830EModel: RedTop 34Category: Vehicle Batteries
Overview
Swapping in a sealed, spill-proof starter for a car or truck is the job: SpiralCell AGM construction with high purity lead delivers strong cranking in bad weather. It mounts in many positions and needs no maintenance.
Strong cranking with high vibration resistance suits off-road rigs and hot rods. Being sealed, it can mount in odd positions. Warranty is only listed as see manufacturer.
Who it's for
Trucks and older cars that see rough roads or cold starts suit the cranking power. Rigs with winches and big audio loads may need a deep cycle model.
Pros and cons
- Strong cold cranking
- Sealed and spill proof
- High vibration resistance
- Mounts in many positions
- Warranty not specified
- Heavy to lift
- For basic electrical demands
Performance notes
Spiral wound cells pack plates tightly, which resists vibration and delivers high current at start. AGM construction holds acid in mats, so it cannot spill. Reserve capacity covers short accessory use with the engine off.
Specifications
| Brand | OPTIMA |
|---|---|
| Model | RedTop 34 |
| Dimensions & fit | |
| Size | 10.06 x 6.88 x 7.88 in |
| Item weight | 37.9 pounds |
| Capacity & performance | |
| Capacity | 50 AH (C20) |
| Reserve capacity | 100 minutes |
| Power & efficiency | |
| Voltage | 12 volts |
| Battery Type | Sealed AGM lead acid |
| Compatibility & installation | |
| Compatible with Vehicle Type | Passenger Car, Truck |
| Included components | |
| Included Components | Battery |
| Warranty & support | |
| Manufacturer Warranty Description | See manufacturer |
| Other details | |
| Terminal | SAE Terminal |
| Cold cranking amps | 800 CCA |
Frequently asked questions
Will the OPTIMA 34 RedTop fit my vehicle?
It is a vehicle-specific fit measuring 10.06 x 6.88 x 7.88 in with SAE posts. Compare against your battery tray and post layout.
Does the OPTIMA 34 RedTop need maintenance?
No. It is maintenance free and non-spillable.
How many cold cranking amps?
800 CCA.
Can it mount on its side?
It is described as mountable in many positions.