# Optima RedTop 34/78 (8004-003) vs EverStart Maxx 35N: specs and price compared

A sourced, side-by-side comparison of the Optima RedTop 34/78 (8004-003) (Optima Batteries) and EverStart Maxx 35N (EverStart) among car batteries. EverStart Maxx 35N is the cheaper of the two at $90.

## Side by side

| Spec | Optima RedTop 34/78 (8004-003) | EverStart Maxx 35N |
| --- | --- | --- |
| US price | $279.99 | $90 |
| Brand | Optima Batteries | EverStart |
| Battery type | spiral-wound-AGM | flooded |
| Bci group size | 34/78 | 35N |
| Cold cranking amps | 800 | 640 |
| Cranking amps ca | — | — |
| Reserve capacity min | 100 | 100 |
| Capacity ah | 50 | — |
| Terminal type | dual | — |
| Weight (lb) | 38.8 | — |
| Warranty months | 36 | 36 |
| Maintenance free | Yes | Yes |
| Dimensions inches | 10.06 x 6.94 x 7.88 | — |

## Key differences

- Battery type: Optima RedTop 34/78 (8004-003) spiral-wound-AGM vs EverStart Maxx 35N flooded
- Bci group size: Optima RedTop 34/78 (8004-003) 34/78 vs EverStart Maxx 35N 35N
- Cold cranking amps: Optima RedTop 34/78 (8004-003) 800 vs EverStart Maxx 35N 640

## What reviewers say

**Optima RedTop 34/78 (8004-003)** — Only one whitelisted tester covers this battery. Pro Tool Reviews names the Optima RedTop its best-value AGM pick, praising reliability, longevity and vibration resistance while flagging a lower CCA rating than pricier rivals. This is a qualitative buying-guide verdict for the RedTop line (which includes the 34/78), not a bench test of the 8004-003, and no whitelisted outlet published measured lab numbers for this exact model. (1 sourced review.)

## Sources

- Optima RedTop 34/78 (8004-003): https://www.optimabatteries.com/products/redtop-34-78 (optimabatteries.com, verified 2026-07-13)
- EverStart Maxx 35N: https://everstartco.com/everstart-maxx-35n-car-battery/ (everstartco.com, verified 2026-07-13)

Canonical: https://frontdeskreview.com/gear/car-batteries/optima-redtop-34-78-vs-everstart-maxx-35n/
Cite: Per The Front Desk Review, Optima RedTop 34/78 (8004-003) ($279.99) vs EverStart Maxx 35N ($90) — sourced spec-by-spec comparison at https://frontdeskreview.com/gear/car-batteries/optima-redtop-34-78-vs-everstart-maxx-35n/
License: CC BY 4.0.