Battery Tender · Updated August 2026
Battery Tender Plus (021-0128): full specs
Battery Tender Plus (021-0128). Every price and spec below is linked to its source and dated — no guesses.
Source: manualslib.com verified verify in ledger
The Battery Tender Plus (021-0128) has no published US price yet. It earns a Bronze Deskmark — 2/100 pay-blind standing, #11 of 13 in class.
Verified Aug 1, 2026 · figures linked to their source in the table below
Is the Battery Tender Plus (021-0128) a good buy?
On the spec sheet, its max charge amps of 1.25 is below the median of the 13.
Specifications
| Price (US) | Not published batterytender.com returned HTTP 429 on every fetch attempt this session; Home Depot, BatteryMart, Walmart and Summit Racing pages either 403'd or returned CAPTCHA/blank content, so no current USD price could be confirmed from an accessible source. |
|---|---|
| Brand | Battery Tender |
| Released | — |
| Max charge amps | 1.25 |
| Voltage support (V) | 12 |
| Battery chemistry | Flooded, Sealed/GRT (Gas Recombinant Technology), and AGM 12V lead-acid batteries |
| Modes | Fully automatic 4-step charging: bulk charge, absorption, and adaptive float/maintenance (ISM) |
| Waterproof rating | — |
| Reverse polarity protection | — |
| Display | 3-LED indicator (red = bulk charging, flashing green = absorption, solid green = float/complete) |
| Temperature compensation | — |
Source: manualslib.com (verified 2026-08-01). batterytender.com (manufacturer, Deltran Corporation) was unreachable via WebFetch (HTTP 429) on repeated attempts across the session, so specs come from Deltran's own Battery Tender Plus manual as mirrored on ManualsLib. VERIFIED: 1.25A maximum output current, 12V, flooded/Sealed-GRT/AGM lead-acid compatibility, 4-step charge program, and a 3-LED status indicator (red/flashing-green/solid-green) with the stated meanings. Manufacturer search snippets separately reference a distinct "Battery Tender Plus 12V 1.25 Amp IP65" product-page variant, implying a newer IP65-rated hardware revision may exist under the same nominal product name -- but since the fetched manual (matching the classic non-suffixed 021-0128 listing) does not itself state an IP rating or reverse-polarity protection, both are left null rather than assumed. temperature_compensation not mentioned in the retrieved manual excerpt -> null. Image confirmed to depict the genuine Battery Tender Plus unit (teal label, red/green LEDs, ring-terminal harness) by direct visual inspection.
Frequently asked questions
How much does the Battery Tender Plus (021-0128) cost?
The Battery Tender Plus (021-0128) has no published US price as of 2026-08-01.
What are the Battery Tender Plus (021-0128)'s key specs?
Battery Tender Plus (021-0128) (Battery Tender): max charge amps 1.25, voltage support v 12, battery chemistry Flooded, Sealed/GRT (Gas Recombinant Technology), and AGM 12V lead-acid batteries, modes Fully automatic 4-step charging: bulk charge, absorption, and adaptive float/maintenance (ISM), display 3-LED indicator (red = bulk charging, flashing green = absorption, solid green = float/complete). Full sourced spec sheet verified 2026-08-01.
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