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 3.6. The Dyness 12V 100Ah Bluetooth leads on warranty. The Dyness 12V 100Ah Bluetooth costs $30.01 less ($179.98 vs $209.99).
ECO-WORTHY 12V 100Ah Bluetooth
#8 in 100 Ah classFull review
A low-cost Group 24 lithium battery with a phone app for boats, RVs and small solar setups. Buyers who need 36V or 48V banks, or cold-weather charging, should look elsewhere.
Amazon $209.99$209.99
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 warranty (5-year warranty vs 3-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 | ECO-WORTHY 12V 100Ah Bluetooth |
|---|---|---|
| Overall rating | 3.8/5 | 3.6/5 |
| Value 35% | 93 $0.14 per rated Wh | 89 $0.16 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 | 25 3-year warranty |
| Cycle life 10% | 33 3,000 cycles at 100% depth, maker rating | 50 cycle life not published (neutral score used) |
| Cold weather 10% | 60 stops charging below freezing (no heater) | 60 stops charging below freezing (no heater) |
Specifications
| Dyness 12V 100Ah Bluetooth | ECO-WORTHY 12V 100Ah Bluetooth | |
|---|---|---|
| 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 | - |
| Price per Wh | $0.14 | $0.16 |
| BMS | ||
| Continuous discharge | 100 A | 100 A |
| Max charge current | 100 A | - |
| Low-temperature charging | Charge cutoff only | Charge cutoff only |
| Bluetooth monitoring | Yes | Yes |
| Series / parallel | up to 4 in series, 4 in parallel | up to 2 in series, 4 in parallel |
| Build | ||
| Case size | Group 31 | Group 24 |
| Dimensions | 12.99 x 6.77 x 8.43 in | 10.23 x 6.6 x 8.43 in |
| Weight | 25.3 lb | 23.1 lb |
| Terminals | M8 | M8 |
| Water resistance | IP65 | - |
| Warranty | 5 years | 3 years |