Epoch Batteries B4850A 51.2V 50Ah LiFePO4 Battery Pack
SKU B4850A
Epoch BatteriesLast updated: 21 September 2026
Battery and charging
- Maximum charge voltage
- 56.8 V charge
- Float voltage
- A band, 54.4 to 55.2 V
“Internal resistance @1khz AC ≤ 3 0mΩ 2.5 C harge voltage range 56.8 2.6 Float voltage range 54.4 ~ 55.2 V 2.7 Allowed MAX charge cur rent 100 A (1 50A @ 10 s) 2.8 Recommend c harge current 50A 2.9 Allowed MAX discharge current 1 00 A (1 50A@30s) 2.10 Recommend d ischa r ge current 10 0A 2.1 2 Short circuit protection 5 00A@ 500 μs 2. 1 3 End of discharge I nverter/ L oad cut off 44. 8 V BLVD 4 0.0V”
Source: cdn.shopify.com/s/files/1/0251/0484/2798/files/Epoch_B4850A.pdf?v=1704491290
“Internal resistance @1khz AC ≤ 3 0mΩ 2.5 C harge voltage range 56.8 2.6 Float voltage range 54.4 ~ 55.2 V 2.7 Allowed MAX charge cur rent 100 A (1 50A @ 10 s) 2.8 Recommend c harge current 50A 2.9 Allowed MAX discharge current 1 00 A (1 50A@30s) 2.10 Recommend d ischa r ge current 10 0A 2.1 2 Short circuit protection 5 00A@ 500 μs 2. 1 3 End of discharge I nverter/ L oad cut off 44. 8 V BLVD 4 0.0V”
Source: cdn.shopify.com/s/files/1/0251/0484/2798/files/Epoch_B4850A.pdf?v=1704491290
Other findings
- Low voltage disconnect
- Load cut-off 44.8 V, BLVD 40.0 V
- Maximum charge current
- 100 A, and 150 A for 10 s
- Recommended discharge current
- 100 A — the same as the maximum
“Internal resistance @1khz AC ≤ 3 0mΩ 2.5 C harge voltage range 56.8 2.6 Float voltage range 54.4 ~ 55.2 V 2.7 Allowed MAX charge cur rent 100 A (1 50A @ 10 s) 2.8 Recommend c harge current 50A 2.9 Allowed MAX discharge current 1 00 A (1 50A@30s) 2.10 Recommend d ischa r ge current 10 0A 2.1 2 Short circuit protection 5 00A@ 500 μs 2. 1 3 End of discharge I nverter/ L oad cut off 44. 8 V BLVD 4 0.0V”
Source: cdn.shopify.com/s/files/1/0251/0484/2798/files/Epoch_B4850A.pdf?v=1704491290
“Internal resistance @1khz AC ≤ 3 0mΩ 2.5 C harge voltage range 56.8 2.6 Float voltage range 54.4 ~ 55.2 V 2.7 Allowed MAX charge cur rent 100 A (1 50A @ 10 s) 2.8 Recommend c harge current 50A 2.9 Allowed MAX discharge current 1 00 A (1 50A@30s) 2.10 Recommend d ischa r ge current 10 0A 2.1 2 Short circuit protection 5 00A@ 500 μs 2. 1 3 End of discharge I nverter/ L oad cut off 44. 8 V BLVD 4 0.0V”
Source: cdn.shopify.com/s/files/1/0251/0484/2798/files/Epoch_B4850A.pdf?v=1704491290
“Internal resistance @1khz AC ≤ 3 0mΩ 2.5 C harge voltage range 56.8 2.6 Float voltage range 54.4 ~ 55.2 V 2.7 Allowed MAX charge cur rent 100 A (1 50A @ 10 s) 2.8 Recommend c harge current 50A 2.9 Allowed MAX discharge current 1 00 A (1 50A@30s) 2.10 Recommend d ischa r ge current 10 0A 2.1 2 Short circuit protection 5 00A@ 500 μs 2. 1 3 End of discharge I nverter/ L oad cut off 44. 8 V BLVD 4 0.0V”
Source: cdn.shopify.com/s/files/1/0251/0484/2798/files/Epoch_B4850A.pdf?v=1704491290
United States — CPSC
We did not match this product to any recall in the data we hold from CPSC, last checked September 23, 2026. Check CPSC’s own search: cpsc.gov/Recalls
United States — NHTSA & Coast Guard
We did not match this product to any recall in the data we hold from NHTSA or the US Coast Guard, which we hold records from but do not yet check on a schedule. Check NHTSA’s own search: nhtsa.gov/recalls
European Union
We did not match this product to any recall in the data we hold from the European Union, last checked September 23, 2026. Check the European Union’s own search: ec.europa.eu/safety-gate-alerts/screen/search
United Kingdom
We did not match this product to any recall in the data we hold from the United Kingdom, last checked September 23, 2026. Check the United Kingdom’s own search: gov.uk/product-safety-alerts-reports-recalls
Australia
We did not match this product to any recall in the data we hold from Australia, last checked September 14, 2026. Check Australia’s own search: productsafety.gov.au/recalls
Canada
We did not match this product to any recall in the data we hold from Canada, last checked September 23, 2026. Check Canada’s own search: recalls-rappels.canada.ca/en/search
France
We did not match this product to any recall in the data we hold from France, last checked September 23, 2026. Check France’s own search: rappel.conso.gouv.fr
New Zealand
We did not match this product to any recall in the data we hold from New Zealand, last checked September 23, 2026. Check New Zealand’s own search: productsafety.govt.nz/recalls
Singapore
We did not match this product to any recall in the data we hold from Singapore, last checked September 23, 2026. Check Singapore’s own search: consumerproductsafety.gov.sg/consumers/safety-alerts-and-recalls
South Africa
We did not match this product to any recall in the data we hold from South Africa, last checked September 23, 2026. Check South Africa’s own search: thencc.org.za/product-recalls
Ireland
We did not match this product to any recall in the data we hold from Ireland, last checked September 23, 2026. Check Ireland’s own search: ccpc.ie/consumer-advice/product-safety/product-safety-notifications
South Korea
We did not match this product to any recall in the data we hold from South Korea, last checked September 23, 2026. Check South Korea’s own search: safetykorea.kr/recall/recallBoard
Norway
We did not match this product to any recall in the data we hold from Norway, last checked September 23, 2026. Check Norway’s own search: farligeprodukter.no/search
Netherlands
We did not match this product to any recall in the data we hold from the Netherlands, last checked September 23, 2026. Check the Netherlands’ own search: nvwa.nl/actueel/veiligheidswaarschuwingen/overzicht
Sweden
We did not match this product to any recall in the data we hold from Sweden, last checked September 23, 2026. Check Sweden’s own search: konsumentverket.se/artikellista/aterkallelser-och-varningar-for-sakerhetsbrister
Japan
We did not match this product to any recall in the data we hold from Japan, last checked September 23, 2026. Check Japan’s own search: recall.caa.go.jp
None of these is a statement that the product is safe or unrecalled — only that our searches found nothing. Each regulator’s own search is linked above.
Platforms — none listed
No sourced compatibility evidence is on file for this battery yet.