Battery Tender · Updated August 2026
Battery Tender Junior (021-0123): full specs
Battery Tender Junior (021-0123). Every price and spec below is linked to its source and dated — no guesses.
Source: manualslib.com verified verify in ledger
The Battery Tender Junior (021-0123) has no published US price yet. It earns a Bronze Deskmark — 0/100 pay-blind standing, #13 of 13 in class.
Verified Aug 1, 2026 · figures linked to their source in the table below
Is the Battery Tender Junior (021-0123) a good buy?
On the spec sheet, its max charge amps of 0.8 is the lowest of the 13.
Specifications
| Price (US) | Not published batterytender.com returned HTTP 429 on every attempt; Home Depot, Summit Racing, and JEGS pages 403'd or returned blank/CAPTCHA content, so no current USD price could be confirmed from an accessible source in this session (a Summit Racing search snippet referenced ~$37.95, but the retailer page itself could not be loaded to verify it, so it is not used as priceUsd). |
|---|---|
| Brand | Battery Tender |
| Released | — |
| Max charge amps | 0.8 |
| Voltage support (V) | 12 |
| Battery chemistry | Flooded and AGM 12V lead-acid batteries |
| Modes | Fully automatic charge-and-maintain (bulk charge then float); no selectable charge profiles |
| Waterproof rating | — |
| Reverse polarity protection | — |
| Display | Single LED status indicator light |
| Temperature compensation | — |
Source: manualslib.com (verified 2026-08-01). batterytender.com (manufacturer) returned HTTP 429 on every attempt, so specs come from Deltran's Battery Tender Junior manual as mirrored on ManualsLib, cross-checked against the manufacturer product photo. VERIFIED BY IMAGE: the actual faceplate on the retrieved product photo reads "12V -- 800mA", not the commonly cited 750mA figure -- max_charge_amps is set to 0.8A to match the printed rating actually visible on the unit rather than the older marketing figure repeated across third-party listings. 12V-only, flooded/AGM compatibility, and a single automatic charge-then-maintain behavior are confirmed in the manual text; waterproof_rating, reverse_polarity_protection and temperature_compensation are not stated in the retrieved manual excerpt and are left null.
Frequently asked questions
How much does the Battery Tender Junior (021-0123) cost?
The Battery Tender Junior (021-0123) has no published US price as of 2026-08-01.
What are the Battery Tender Junior (021-0123)'s key specs?
Battery Tender Junior (021-0123) (Battery Tender): max charge amps 0.8, voltage support v 12, battery chemistry Flooded and AGM 12V lead-acid batteries, modes Fully automatic charge-and-maintain (bulk charge then float); no selectable charge profiles, display Single LED status indicator light. Full sourced spec sheet verified 2026-08-01.
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