Dyness 12V 100Ah Bluetooth
#3 in 100 Ah classFull review
A cheap, IP65 Bluetooth 100Ah battery for RV, solar and marine use, from one of the larger storage-battery makers. Cold-climate users need a heated model instead.
Amazon $179.98$179.98
The Dyness 12V 100Ah Bluetooth is the better 12V lithium battery overall, rated 3.8 to 3.1. The Dyness 12V 100Ah Bluetooth leads on value. The Dakota Lithium 12V 100Ah wins on warranty. The Dyness 12V 100Ah Bluetooth costs $519.02 less ($179.98 vs $699).
Dakota Lithium 12V 100Ah
#15 in 100 Ah classFull review
For anglers and boaters who want a US-brand battery with an 11-year warranty. Budget buyers get more cycles and cold protection for less elsewhere.
TackleDirect $699 Inverters R Us $720$699
Prices were last checked October 22, 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 Dyness 12V 100Ah Bluetooth for value ($0.14 per rated Wh vs $0.55 per rated Wh).
- Choose the Dakota Lithium 12V 100Ah for warranty (11-year warranty vs 5-year warranty).
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every 100 Ah class 12V lithium battery; a clear win is highlighted. How we rank explains each one.
| Factor weight | Dyness 12V 100Ah Bluetooth | Dakota Lithium 12V 100Ah |
|---|---|---|
| Overall rating | 3.8/5 | 3.1/5 |
| Value 35% | 93 $0.14 per rated Wh | 26 $0.55 per rated Wh |
| Tested capacity 15% | 50 not yet independently tested (neutral score used) | 50 not yet independently tested (neutral score used) |
| Output 15% | 50 100 A continuous (about 1,280 W at 12.8 V) | 50 100 A continuous (about 1,280 W at 12.8 V) |
| Warranty 15% | 50 5-year warranty | 100 11-year warranty |
| Cycle life 10% | 33 3,000 cycles at 100% depth, maker rating | 17 2,000 cycles, maker rating |
| Cold weather 10% | 60 stops charging below freezing (no heater) | 50 low-temperature charging protection not stated (neutral score used) |
Specifications
| Dyness 12V 100Ah Bluetooth | Dakota Lithium 12V 100Ah | |
|---|---|---|
| Capacity | ||
| Rated capacity | 100 Ah (1,280 Wh) | 100 Ah (1,280 Wh) |
| Nominal voltage | 12.8 V | 12.8 V |
| Chemistry | LiFePO4 | LiFePO4 |
| Rated cycle life | 3,000 at 100% depth | 2,000 |
| Price per Wh | $0.14 | $0.55 |
| BMS | ||
| Continuous discharge | 100 A | 100 A |
| Peak discharge | - | 200 A for 10 s |
| Max charge current | 100 A | 50 A |
| Low-temperature charging | Charge cutoff only | - |
| Bluetooth monitoring | Yes | - |
| Series / parallel | up to 4 in series, 4 in parallel | up to 4 in series |
| Build | ||
| Case size | Group 31 | Group 27 |
| Dimensions | 12.99 x 6.77 x 8.43 in | 12.99 x 6.77 x 8.66 in |
| Weight | 25.3 lb | 31.9 lb |
| Terminals | M8 | M8 |
| Water resistance | IP65 | - |
| Warranty | 5 years | 11 years |