Battery Tender Junior Multi-Chemistry
#13 in Up to 5 AFull review
The pick for riders with a lithium motorcycle or powersport battery who want a simple, small maintainer for storage.
Amazon $42.49$42.49
The Battery Tender Junior Multi-Chemistry is the better battery charger overall, rated 2.8 to 2.5. The Battery Tender Junior Multi-Chemistry leads on features. The Battery Tender Junior 750 mA costs $5.49 less ($37 vs $42.49).
Battery Tender Junior 750 mA
#16 in Up to 5 AFull review
The classic set and forget maintainer for lead acid batteries in stored motorcycles, mowers and summer cars. Skip it for lithium batteries or for recharging flat car batteries.
Amazon $37$37
Prices were last checked October 31, 2026 and are subject to change; the price and availability shown by the retailer at the time of purchase apply.
Which should you buy?
- Choose the Battery Tender Junior Multi-Chemistry for features (lithium mode, temperature compensation vs temperature compensation).
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every up to 5 A battery charger; a clear win is highlighted. How we rank explains each one.
| Factor weight | Battery Tender Junior Multi-Chemistry | Battery Tender Junior 750 mA |
|---|---|---|
| Overall rating | 2.8/5 | 2.5/5 |
| Value 35% | 17 $42.49 per amp ($42.49, 1 A) | 10 $49.33 per amp ($37, 0.8 A) |
| Charge current 20% | 0 1 A | 0 0.8 A |
| Features 25% | 50 lithium mode, temperature compensation | 25 temperature compensation |
| Warranty 20% | 100 5-year warranty | 100 5-year warranty |
Specifications
| Battery Tender Junior Multi-Chemistry | Battery Tender Junior 750 mA | |
|---|---|---|
| Charging | ||
| Charge current | 1 A | 0.75 A |
| Voltage | 12 V | 12 V |
| Largest battery | 30 Ah | 30 Ah |
| Lithium mode | Yes | No |
| AGM mode | No | No |
| Temperature compensation | Yes | Yes |
| Repair mode | No | No |
| Power supply mode | No | No |
| Build | ||
| Weight | 0.7 lb | 0.7 lb |
| Warranty | 5 years | 5 years |
| Released | 2017-02-06 | - |