Epoch 12V 300Ah Essential
#3 in LargeFull review
For RVs and boats that want a large, heated, Bluetooth-monitored bank in one Group 31 case. It suits cold-weather users who would otherwise wire up three 100Ah batteries.
Epoch $1,249$1,249
The Epoch 12V 300Ah Essential is the better 12V lithium battery overall, rated 3.7 to 3.6. The Epoch 12V 300Ah Essential leads on cold weather and warranty. The LiTime 12V 460Ah Group 8D wins on value and output. The LiTime 12V 460Ah Group 8D costs $249.01 less ($999.99 vs $1,249).
LiTime 12V 460Ah Group 8D
#8 in LargeFull review
For off-grid cabins, large RVs and boats that want one very large battery to run high loads, installed somewhere that stays above freezing.
Amazon $999.99$999.99
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 Epoch 12V 300Ah Essential for cold weather (self-heating, so it charges below freezing vs no low-temperature charge protection) and warranty (11-year warranty vs 5-year warranty).
- Choose the LiTime 12V 460Ah Group 8D for value ($0.17 per rated Wh vs $0.33 per rated Wh) and output (250 A continuous (about 3,200 W at 12.8 V) vs 200 A continuous (about 2,560 W at 12.8 V)).
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every large 12V lithium battery; a clear win is highlighted. How we rank explains each one.
| Factor weight | Epoch 12V 300Ah Essential | LiTime 12V 460Ah Group 8D |
|---|---|---|
| Overall rating | 3.7/5 | 3.6/5 |
| Value 35% | 54 $0.33 per rated Wh | 84 $0.17 per rated Wh |
| Tested capacity 15% | 50 not yet independently tested (neutral score used) | 50 not yet independently tested (neutral score used) |
| Output 15% | 50 200 A continuous (about 2,560 W at 12.8 V) | 75 250 A continuous (about 3,200 W at 12.8 V) |
| Warranty 15% | 100 11-year warranty | 50 5-year warranty |
| Cycle life 10% | 50 4,000 cycles, maker rating | 50 4,000 cycles at 100% depth, maker rating |
| Cold weather 10% | 100 self-heating, so it charges below freezing | 0 no low-temperature charge protection |
Specifications
| Epoch 12V 300Ah Essential | LiTime 12V 460Ah Group 8D | |
|---|---|---|
| Capacity | ||
| Rated capacity | 300 Ah (3,840 Wh) | 460 Ah (5,888 Wh) |
| Nominal voltage | 12.8 V | 12.8 V |
| Chemistry | LiFePO4 | LiFePO4 |
| Rated cycle life | 4,000 | 4,000 at 100% depth |
| Price per Wh | $0.33 | $0.17 |
| BMS | ||
| Continuous discharge | 200 A | 250 A |
| Peak discharge | 400 A for 3 s | 500 A for 5 s |
| Max charge current | 200 A | 250 A |
| Low-temperature charging | Self-heating | None |
| Bluetooth monitoring | Yes | No |
| Series / parallel | up to 4 in series, 4 in parallel | up to 4 in series, 4 in parallel |
| Build | ||
| Case size | Group 31 | Group 8D |
| Dimensions | 13.75 x 7.63 x 10.00 in | 20.47 x 10.59 x 8.66 in |
| Weight | 58 lb | 86.7 lb |
| Terminals | M8 bolt | M8 bolt |
| Water resistance | IP54 | IP65 |
| Warranty | 11 years | 5 years |
| Released | 2026-07 | 2023-06 |