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 STALE · 2026-08-01 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 (read 2026-08-01) STALE · 2026-08-01 . batterytender.com (manufacturer, Deltran Corporation) was unreachable (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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