Overview
The BLUETTI B1210 is a 12.8V 100Ah deep-cycle battery built for trolling motors, camper fridges, lighting and camping power. It packs 1280Wh into a sealed case that weighs 11kg, around a third of the lead-acid battery it replaces. Bolt terminals and an IP65 casing make it at home on a transom, in a camper locker or in a portable power box. Its LiFePO4 chemistry is rated for 6000 charge cycles at 70% capacity, so it is built to cycle every day for years.
Cold is not a problem. A built-in self-heating film switches on below 0 degrees Celsius and warms the cells to about 25 degrees Celsius, as long as a charging source is connected. Charging is quick too: the B1210 accepts charge at up to 100A. When one battery is not enough, it connects up to 4 in series and 24 in parallel, growing to a bank of 122.8kWh. The Ethernet cable in the box carries the communication link between batteries; the power cables that join the terminals are not included. If you're unsure how it fits your setup, we're happy to help before you buy.
B1210 Specs:
- Capacity: 1280 Wh (12.8 V, 100 Ah)
- Type: LiFePO4 (Lithium Iron Phosphate)
- Life Cycles: 6000 Cycles @ 70% Capacity
- Charge Current: 50A (Recommended) 100A Max.
- Discharge Current: 100A Max.
- Peak Discharge Current: 300A @ 8s
- Cell Temperature Protection: pauses charging below -1°C or above 61°C, and discharging below -21°C or above 61°C
- Net Weight: 11 kg
- Dimensions (L × W × H): 290 × 173 × 229.5 mm
- IP Rating: IP65
- Max. Expansion (Parallel & Series): 122.8 kWh (4S24P), 51.2 V, 2400 Ah
- Discharging Temperature: -20°C to 55°C
- Certification: MSDS, UN38.3, FCC, CE, RoHS, UL
What's in the Box?
- B1210 LiFePO4 Battery x 1
- M8×20 Bolt x 4
- M8×30 Bolt x 2
- M8 Flange Nut x 6
- Ethernet Cable x 1
- Terminal Cover x 2
- User Manual & Warranty Card x 1
- Download the BLUETTI B1210 user manual (PDF)
- Warranty: 5 years
Note: The B1210 is a standalone deep-cycle battery with bolt terminals, not a plug-in expansion pack. Chargers, connection cables and the equipment it powers are sold separately.

Grows With Your System
One B1210 runs a trolling motor or a camp fridge; a bank of them runs a whole system. The B1210 connects up to 4 in series and 24 in parallel (4S24P), scaling to a maximum of 122.8kWh at 51.2V with up to 2400A of combined current. The Ethernet cable in the box carries the communication link between batteries; the power cables that join the terminals are not included.

Tough Where Batteries Live
The B1210's battery management system pauses charging below -1°C or above 61°C, and discharging below -21°C or above 61°C, protecting the cells at the extremes. Its casing is rated IP65 against dust and water jets, and BLUETTI builds it with a fire-resistant shell. That is what a battery needs to live in a boat locker, on a camper's drawbar, or in the back of a ute.

Consistent Power, Even in the Cold
Ordinary lithium batteries stop accepting charge below freezing. The B1210's built-in self-heating film activates automatically when the battery drops below 0 degrees Celsius and warms the cells to about 25 degrees Celsius, needing only a state of charge above 2 percent and a steady charging source such as solar, shore power or vehicle DC. No switches and no manual heating: it keeps charging through a frosty morning on the lake.

Monitor Your Power With Ease
The BLUETTI app shows the B1210's state of charge, real-time voltage, current and power, charging or discharging status, battery temperature, remaining charge time and system capacity. Check the bank from the cab before you launch, instead of lifting the locker lid with a multimeter in hand.

Quick Recharge, Flexible Charging
The B1210 charges at up to 100A, with 50A the recommended rate. At the full rate BLUETTI quotes about 50 minutes to 80 percent and roughly 75 minutes to a full charge, around ten times faster than a comparable lead-acid battery. Real-world times depend on your charger's output and the battery's temperature.

Which Battery Fits Your System?
Against the 12V 100Ah lead-acid battery it replaces, the B1210 weighs 11kg instead of about 29kg, and is rated for 6000 cycles at 70% capacity where lead-acid typically manages a few hundred. BLUETTI also quotes nearly double the usable capacity and a 10-year design lifespan. The card below shows BLUETTI's own numbers side by side.


Pairs Well With
The B1210 is the 12V heart of a small setup: a trolling motor on the transom, a camper's fridge and lights, or a portable power box for the campsite. Chargers, connection cables and the equipment it powers are sold separately, and any 12V charger you use should support a LiFePO4 charge profile. Not sure it fits your setup? We're happy to help before you buy.
Frequently Asked Questions
What is the B1210 built for?
The B1210 is a 12.8V 100Ah deep-cycle battery, 1280Wh in a compact 11kg case, built for trolling motors, small RV fridges, lighting and camping power. Its bolt terminals and IP65-rated casing suit boats, camper setups and portable 12V systems where a sealed, maintenance-free battery earns its keep.
Can the B1210 replace my 12V lead-acid battery?
Yes. BLUETTI builds the B1210 to the standard Group 27 case size, so in most setups it drops into the space a 12V lead-acid battery occupies. At approximately 11kg it weighs roughly a third of a comparable lead-acid unit, and it is rated for 6000 charge cycles at 70% capacity, far beyond typical lead-acid life. Check your charger supports LiFePO4 charge profiles, and if you're unsure about fit, we're happy to help before you buy.
Can I connect more than one B1210 together?
Yes. The B1210 expands up to 4 in series and 24 in parallel (4S24P), for a maximum bank of 122.8kWh at 51.2V. The Ethernet cable in the box carries the communication link between batteries; the power cables that join the terminals are not included. If you're unsure what your bank needs, we're happy to help before you buy.
Does the B1210 work in cold weather?
Yes. The B1210 has a built-in self-heating film that activates automatically when the battery temperature drops below 0 degrees Celsius, warming the cells to about 25 degrees Celsius so charging can continue safely. No manual action is needed: heating runs whenever the state of charge is above 2 percent and a steady charging source such as solar, shore power or vehicle DC is connected.
How fast does the B1210 charge?
The B1210 accepts up to 100A of charge current (50A is the recommended rate). At the full 100A rate BLUETTI quotes about 50 minutes to 80 percent and roughly 75 minutes to full, around ten times faster than a typical lead-acid battery. Real-world times depend on your charger's output and the battery's temperature.