Battery Tender
Battery Tender Plus (021-0128)
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Best Car Battery Chargers · head-to-head
Battery Tender Plus (021-0128) vs 128CEC2 12V 2/4/8A Charger, Maintainer & Desulfator
A sourced, side-by-side comparison. 128CEC2 12V 2/4/8A Charger, Maintainer & Desulfator is cheaper at $223. Every spec and price links to its source.
BatteryMINDer
128CEC2 12V 2/4/8A Charger, Maintainer & Desulfator
$223
Full spec sheet
✓ marks the stronger figure where "more" — or "less", for price and weight — is unambiguously better.
| Spec | Battery Tender Plus (021-0128) | 128CEC2 12V 2/4/8A Charger, Maintainer & Desulfator |
|---|---|---|
| US price | — | $223 |
| Brand | Battery Tender | BatteryMINDer |
| Released | — | — |
| Max charge amps | 1.25 | 8 |
| Voltage support (V) | 12 | 12 |
| Battery chemistry | Flooded, Sealed/GRT (Gas Recombinant Technology), and AGM 12V lead-acid batteries | Flooded, sealed, AGM, and deep-cycle lead-acid; 12V Lithium (LiFePO4); Odyssey-approved |
| Modes | Fully automatic 4-step charging: bulk charge, absorption, and adaptive float/maintenance (ISM) | Selectable 2/4/8A charge rate; 7-stage charging with pulse-type desulfation; can maintain up to 8 batteries simultaneously with accessory connectors |
| Waterproof rating | — | IP65 |
| Reverse polarity protection | — | Yes |
| Display | 3-LED indicator (red = bulk charging, flashing green = absorption, solid green = float/complete) | 18-LED indicator array showing state-of-charge and status mode |
| Temperature compensation | — | Yes |
Sources — Battery Tender Plus (021-0128): manualslib.com (verified 2026-08-01). 128CEC2 12V 2/4/8A Charger, Maintainer & Desulfator: batteryminders.com (verified 2026-08-01).
What's the difference between the Battery Tender Plus (021-0128) and 128CEC2 12V 2/4/8A Charger, Maintainer & Desulfator?
Where the two actually differ on the specs we track (4 of 8). Matching specs are omitted.
- Max charge amps: Battery Tender Plus (021-0128) 1.25 vs 128CEC2 12V 2/4/8A Charger, Maintainer & Desulfator 8
- Battery chemistry: Battery Tender Plus (021-0128) Flooded, Sealed/GRT (Gas Recombinant Technology), and AGM 12V lead-acid batteries vs 128CEC2 12V 2/4/8A Charger, Maintainer & Desulfator Flooded, sealed, AGM, and deep-cycle lead-acid; 12V Lithium (LiFePO4); Odyssey-approved
- Modes: Battery Tender Plus (021-0128) Fully automatic 4-step charging: bulk charge, absorption, and adaptive float/maintenance (ISM) vs 128CEC2 12V 2/4/8A Charger, Maintainer & Desulfator Selectable 2/4/8A charge rate; 7-stage charging with pulse-type desulfation; can maintain up to 8 batteries simultaneously with accessory connectors
- Display: Battery Tender Plus (021-0128) 3-LED indicator (red = bulk charging, flashing green = absorption, solid green = float/complete) vs 128CEC2 12V 2/4/8A Charger, Maintainer & Desulfator 18-LED indicator array showing state-of-charge and status mode