Deep Cycle Marine Battery

Marine, Automotive and Industrial Lithium Batteries

Sealed lead-acid AGM, gel cell, and lead-acid flooded cells are the most common marine batteries because of their safety, price, and performance. But, lithium batteries are slowly entering this market too, due to their lightweight design and excellent capacity-to-weight and power-to-weight ratio.

Updated: July 30, 2021.

ampere time 12v 300ah lithium 2

Lithium Batteries vs Lead-Acid Batteries

Modern lead-acid batteries are wet/flooded, Absorbent Glass Mat (AGM) and Gel-cell batteries, with AGM and Gel-cell batteries being designed as Valve Regulated Lead-Acid (VRLA) Sealed Lead-Acid (SLA) batteries, making them spill-proof, (almost) maintenance-free batteries that can be mounted in any position except up-side-down.

The main advantages of lead-acid batteries are their affordable price, their ability to provide strong currents even by deep cycle batteries, their reliable operation, resistance to vibrations, etc.

The main disadvantages of the lead-acid batteries are their weight and their capacity loss when they are discharged with 1C or stronger currents.

 When compared with lead-acid batteries, lithium batteries have several pros and cons:

- for the same nominal (20h) capacity, lithium batteries are 2-3x lighter than lead-acid batteries. When 1h capacities are compared, lithium batteries tend to be 3-5x lighter than lead-acid batteries.

- lithium batteries generally support much more charging/discharging cycles, with some models supporting 2000+ cycles down to 100% DoD, 3000+ cycles down to 80% DoD, 5000-10000 cycles down to 50% DoD. On the other hand, deep-cycle lead-acid batteries that support 300+ cycles down to 100% DoD are considered as very good, even excellent batteries.

 - lithium batteries should feature built-in Battery Management Systems (BMS) that monitor the battery and protect the battery from unwanted events like overcharging, over-discharging, overcurrent, short-circuit protection, overheating, low-temperature operation, and similar. Without the BMS, lithium batteries are simply too dangerous to be used.

- lithium batteries feature a much stable output voltage than lead-acid batteries. For example, most 12V lithium batteries feature nominal voltage of 12.8 volts with their output voltage being above 12V during at least 90% of their discharge cycle, which also improves their energy efficiency.

- lithium batteries should not be connected in series or parallel, unless explicitly allowed by the manufacturer - even then, they should be connected as recommended by the manufacturer regarding the number of batteries in series or parallel.

Note: when connecting the batteries in series and/or parallel, both lithium and lead-acid batteries, always choose the same battery model from the same brand, preferably from the same batch. Adding, for example, new batteries to the existing battery pack that has been working heavily for months/years will cause some batteries to work harder, leading to battery pack failure.

- lead-acid batteries are fairly easy to charge, even in applications where the charging voltage is not very stable - actually, in such systems, a lead-acid battery is the one that is being used as a voltage stabilizer.

noco genius g26000 w300

Lithium batteries, on the other hand, should be recharged only using lithium battery chargers or using advanced AGM battery chargers that feature lithium battery charging modes.

Also, some lithium batteries may be recharged directly from the alternator or using old lead-acid battery chargers, as long as their output voltage is not larger than the battery's overvoltage protection threshold, which is usually around 15.0 volts.

When the lithium batteries are being charged using AGM battery chargers, they are not fully charged due to the slight end-voltage difference. Also, modern AGM battery chargers feature charging modes like desulphation and similar, which use voltage spikes that can cause BMS to disconnect the battery or worse, it can even destroy the battery's BMS.

- lithium batteries feature a very low self-discharge rate, allowing the batteries to retain most of their capacity even after 8-12 months of storage. The self-discharge rate of lead-acid batteries greatly depends on the temperature - models that have a self-discharge rate of, for example, 3% per month @20°C, can have a self-discharge rate of 10-12+% per month @40°C.

To protect the lead-acid batteries during storage, it is recommended to keep them connected to the battery maintainers, especially if stored above 20-25°C.

Note: Lithium batteries also benefit from being stored at low temperatures, but not as much as lead-acid batteries.

- both lithium and lead-acid batteries are designed and built as starting, dual-purpose, and deep-cycle batteries. So, choose the battery type as required by the application.

battle born battery lifepo4 100ah 12v 1

 Most Common Lithium Battery Chemistries

Rechargeable lithium batteries come in several, slightly different chemistries, and some of the most important ones are:

 - IMR batteries feature Lithium Manganese Oxide (LiMn2O4) chemistry. Their nominal voltage is 3.6 - 3.7 V per cell, with a maximum recommended charging voltage of 4.2 V. IMR lithium batteries commonly have a smaller capacity when compared with other lithium rechargeable batteries, but are capable of delivering larger currents. IMR lithium batteries are used for starting batteries.

- INR batteries feature Lithium Manganese Nickel (LiNiMnCoO2) chemistry. INR batteries are very similar to IMR batteries, in respect to voltages, currents, and capacity. They are commonly used for starting batteries.

- IFR batteries feature Lithium Iron Phosphate (LiFePO4) chemistry. Their nominal voltage is 'only' 3.2 - 3.3 V per cell, with the maximum allowed charging voltage of 'only' 3.5 - 3.6 V. Lithium batteries MUST be charged with the chargers recommended by their manufacturer - IFR batteries, due to their lower voltage, can be a fire hazard if charged with lithium battery chargers set to 4.2 V per cell charging!

 - ICR batteries feature Lithium Cobalt Oxide (LiCoO2) chemistry. Their nominal voltage is 3.6 - 3.7 V per cell, with the maximum allowed charging voltage of 4.2 V. ICR batteries commonly have higher capacities, but the maximum allowed discharging currents are often limited to just a few C. Thus, ICR batteries are commonly used as deep cycle and low-current starting batteries since 100 Ah ICR batteries can provide 300-500 Amps (depends on the battery!) for a shorter period of time.

Other lithium battery chemistries are present on the market too, including hybrid technologies like Lithium Nickel Cobalt Oxide (LiNiCoO2), Lithium Nickel Cobalt Aluminum Oxide (LiNiCoAlO2), etc.

The most popular lithium battery chemistry is Lithium Iron Phosphate (IFR, LiFePO4) chemistry. Although it is the safest lithium battery chemistry, LiFePO4 batteries should also come with the built-in BMS system - such system protects the battery and balances individual cells in the battery pack, prolonging their operating life.

aims lfp12v200ab w200px

Lithium Iron Phosphate chemistry is mostly used for large, deep cycle batteries which typically feature maximum continuous current in the 0.8-1.0 C range with maximum, short pulse (3-10s, model dependent) current usually in the 2-5C range.

On the other hand, starting lithium-ion batteries feature CCA ratings in the 50-60C, sometimes even more.

The following comparison chart lists some of the most popular lead-acid and lithium YTX20L-BS and YTX20HL-BS batteries with their most important features and specifications:

Brand 10h Capacity CCA (Amps) Amazon Link
Banshee 18 Ah 310 Amps Banshee YTX20L-BS
Battery Tender 6.1 Ah 360 CA (Lithium) Battery Tender BTL20A360CW
Battery Tender 8.0 Ah 480 CA (Lithium) Battery Tender BTL24A480CW
Chrome 18 Ah 310 Amps Chrome Battery YTX20HL-BS
Chrome 18 Ah 270 Amps Chrome Battery YTX20L-BS
Energizer 18 Ah 310 Amps Energizer TX20HL
EverLast 18 Ah 310 Amps EverLast CTX20HL-BS
EverLast 14 Ah 220 Amps EverLast CTX20L-BS
Mighty Max 18 Ah 270 Amps Mighty Max YTX20L-BS
Niche 18 Ah 270 Amps Niche YTX20L-BS
PowerStar 18 Ah 220 Amps PowerStar YTX20L-BS
SigmasTek 18 Ah 310 Amps SigmasTek STX20HL-BS
SigmasTek 19 Ah 270 Amps SigmasTek STX20L-BS
Weize 18 Ah 310 Amps Weize YTX20HL-BS
Weize 18 Ah 270 Amps Weize YTX20L-BS
Yuasa 18 Ah 310 Amps Yuasa YTX20HL-BS
Yuasa 18 Ah 270 Amps Yuasa YTX20L-BS

Note: Amazon affiliate links ('Amazon Link' column) open in the new windows, feel free to check them for the most up-to-date offers and prices.

Also, lithium YTX20L-BS and YTX20HL-BS starting batteries are much lighter than the AGM YTX20L-BS and YTX20HL-BS batteries.

For more about these batteries, feel free to check our YTX20L-BS and YTX20HL-BS Powersports Batteries or Powersports, ATVs, and Motorcycle Battery Cross Reference Chart articles.

12V Marine, Car, and Industrial Lithium Batteries

The most popular 12V marine, car, and industrial heavy-duty lithium batteries are given in the following chart:

Model Battery Type
Cell Type
Group Size Capacity (Ah)
RC (min)
Discharge
Currents
Parallel Conn.
Series Conn.
Weight (lbs/kg)
AIMS Power LFP12V50A Deep Cycle
LiFePO4
- 50
120
50A cont.
100A 10s
? 17.75 lbs; 8.04 kg
AIMS Power LFP12V100A Deep Cycle
LiFePO4
31 100
240
100A cont.
200A 10s
? 30.2 lbs; 13.7 kg
AIMS Power LFP12V200A Deep Cycle
LiFePO4
4D (6D) 200
480
160A cont.
350A 10s
? 77 lbs; 34.9 kg
AIMS Power LFP12V50B Deep Cycle
LiFePO4
- 50
120
50A cont.
100A 10s
P: up to 4
S: up to 4
15.5 lbs; 7.0 kg
AIMS Power LFP12V100B Deep Cycle
LiFePO4
31 100
240
100A cont.
200A 10s
P: up to 4
S: up to 4
28.5 lbs; 12.9 kg
AIMS Power LFP12V200B Deep Cycle
LiFePO4
4D (6D) 200
480
200A cont.
400A 10s
P: up to 4
S: up to 4
62 lbs; 28.1 kg
Ampere 12V 50Ah Plus Deep Cycle
LiFePO4
- 50
120
50A cont.
100A 5s
P: no limits (4?)
S: up to 4
14.3 lbs; 6.5 kg
Ampere 12V 200Ah Deep Cycle
LiFePO4
4D (6D)  200
480
100A cont.
280A 5s
P: no limits (4?)
S: up to 4
46.07 lbs; 20.9 kg
Ampere 12V 200Ah Plus Deep Cycle
LiFePO4
4D (6D)  200
480
200A cont.
400A 5s
P: up to 4
S: up to 4
52.25 lbs; 23.67 kg
Ampere 12V 300Ah Plus Deep Cycle
LiFePO4
4D (6D) 300
720
200A cont.
400A 5s
P: no limits (4?)
S: up to 4
69 lbs; 31.3 kg
Battle Born BB5012 Deep Cycle
LiFePO4
- 50
120
60A cont.
100A 30s
P: yes
S: up to 4
17.6 lbs; 8.0 kg
Battle Born BB10012 Deep Cycle
LiFePO4
31 100
240
100A cont.
200A 30s
P: yes
S: up to 4
29 lbs; 13.2 kg
Battle Born BBGC2 Deep Cycle
LiFePO4
GC2 100
240
100A cont.
200A 30s
P: yes
S: up to 4
31 lbs; 14 kg
Bioenno Power BLF-12100WS Deep Cycle
LiFePO4
31 100
240
100A cont.
200A 5s
(not recommended) 28.1 lbs; 12.8 kg
Eastup 1250750 Dual Purpose
LiFePO4
34R/97R 50
120
750 CCA
930 MCA
? 15.43 lbs;  ~7.0 kg
Eastup 12751000 Dual Purpose
LiFePO4
94R 75
180
1000 CCA ? 17 lbs; ~7.7 kg
ExpertPower EP1250 Deep Cycle
LiFePO4
- 50
120
50A cont.
100A 10s
? 13 lbs; 5.9 kg
ExpertPower EP12100 Deep Cycle
LiFePO4
31 100
240
100A cont.
200A 2s
? 22.6 lbs; 10.3 kg
ExpertPower EP12200 Deep Cycle
LiFePO4
4D (6D) 200
480
150A cont.
200A 3s
? 48.3 lbs; 21.9 kg
GLI GLIBATT12050 Deep Cycle
LiFePO4
26 50
120
50A cont.
500A 5s(?)
P: yes
S: up to 4
15 lbs; 6.8 kg
GreenLiFE GL50-50AH Deep Cycle
LiFePO4
21 50
120
50A cont. Yes 15 lbs;  6.8 kg
GreenLiFE GL80-80AH Deep Cycle
LiFePO4
27 80
190
80A cont. Yes 28 lbs; 12.8 kg
GreenLiFE GL100-100AH Deep Cycle
LiFePO4
31 100
240
100 cont.
1000A 5s
Yes 31 lbs;  14 kg
GreenLiFE GL260-260AH Deep Cycle
LiFePO4
8D 260
620
100 cont.
2600A 5s.
Yes 80 lbs; 36.24 kg
JITA 12V100Ah Deep Cycle
LiFePO4
31 100
240
200A cont.
400A 5s
P: up to 4
S: up to 4
23.8 lbs; 10.8 kg
JITA 12V200Ah Deep Cycle
LiFePO4
4D (6D) 200
480
200A cont.
400A 5s
P: up to 4
S: up to 2
48.9 lbs; 22.2 kg
JITA 12V300Ah Deep Cycle
LiFePO4
4D (6D) 300
720
200A cont.
400A 5s
P: up to 4
S: up to 4
68.3 lbs; 31.0 kg
Kunmo LF-12100 Deep Cycle
LiFePO4
75 100
240
100 cont. ? 25.3 lbs; 11.5 kg
Lossigy 12V100Ah Deep Cycle
LiFePO4
- 100
240
50A cont. P: up to 10
S: up to 4
23.8 lbs; 10.8 kg
Lossigy 12V200Ah Deep Cycle
LiFePO4
4D 200
480
100A cont. P: no limit (10?)
S: up to 4
46 lbs; 20.9 kg
Lossigy 12V300Ah Deep Cycle
LiFePO4
4D (6D) 300
720
200A cont. P: up to 10
S: up to 4
72 lbs; 32.6 kg
Mighty Max ML100-12Li Deep Cycle
LiFePO4
30H 100
240
100A cont.
200A 15s
P: Up to 4
S: Not Allowed
29.54 lbs; 13.4 kg
Renogy RNG-BATT-LFP12-50 Deep Cycle
LiFePO4
- 50
120
50A cont. P: Yes
S: Not Allowed
14.77 lbs;  6.7 kg
Renogy RNG-BATT-LFP12-100 Deep Cycle
LiFePO4
- 100
240
100A cont. P: Yes
S: Not Allowed
28.1 lbs;  12.73 kg
Renogy RBT100LFP12S-G1 Deep Cycle
LiFePO4
- 100
240
100A cont. P: Yes
S: Not Allowed
26 lbs; 11.8 kg
Renogy RNG-BATT-LFP12-170 Deep Cycle
LiFePO4
- 170
408
125A cont. P: Yes
S: Not Allowed
46.3 lbs; 20.97 kg
VMAXTANKS LFP27-12100 Deep Cycle
LiFePO4
27 100
240
125A cont.
350A 3s
P: up to 4
S: up to 4
25.3 lbs; 11.5 kg
VMAXTANKS LFPU1-1245 Deep Cycle
LiFePO4
U1 45
108
45A con.
100A 3s
P: up to 4
S: up to 4
10.8 lbs; 4.9 kg
VMAXTANKS VPG12C-50Li Deep Cycle
LiFePO4
U1 50
120
50A cont.
100A 5s
150A 3s
P: Up to 2
S: Not Allowed
12 lbs; 5.5 kg
Waterblade LFP 100-12.8 Deep Cycle
LiFePO4
31 100
240
80A cont.
400A 1s
? 29 lbs; 13.2 kg
Weize FPLI-12100AH Deep Cycle
LiFePO4
31 100
240
50A
100A 3s
P: up to 4
S: up to 2 (4?)
26.4 lbs; 12.0 kg

Note: Amazon affiliate links ('Model' column) open in the new windows, feel free to check them for the most up-to-date prices and offers. Also, we have tried to verify every single bit of information in this chart, but things may change over time, especially with the introduction of new battery (sub)models.

Many lithium-ion batteries come with built-in electronics and are designed to be drop-in replacements for SLA batteries, requiring no changes to the boat/car/truck electrical system.

The main advantages of the lithium-ion drop-in replacement batteries are their lightweight design (3-4x lighter than SLA batteries), and their higher number of charging/discharging cycles (up to 4-6x times more charging/discharging cycles than SLA batteries).

The main drawback of lithium batteries is their cost, making their initial purchase rather expensive. But, due to the number of charging/discharging cycles, their actual price during the use of the boat/vehicle is lower than the price of required SLA batteries.

Note: never, but really never charge your lithium batteries with chargers not explicitly recommended by their manufacturer.

These 12V lithium-ion batteries are also used as wheelchair batteries, trolling motor batteries, RV batteries, off-the-grid batteries, etc. anywhere where higher initial costs are acceptable due to the weight savings and prolonged operating lifetime.

Most modern 12-volt lithium batteries can be connected in series and parallel to create battery packs with higher voltages or with higher capacity, just be sure to follow the recommendations of their manufacturers regarding connection types.

24V Marine, Car, and Industrial Lithium Batteries

The most popular 24V marine, car, and industrial heavy-duty lithium batteries are given in the following chart:

Model Battery Type
Cell Type
Group Size Capacity (Ah)
RC (min)
Discharge
Currents
Parallel conn.
Series conn.
Weight (lbs/kg)
Ampere Time 24V 100Ah Deep Cycle
LiFePO4
4D (6D) 100
240
100A cont.
280A 5s
P: up to 4
S: up to 2
47.4 lbs; 21.5 kg
Battle Born BB5024 Deep Cycle
LiFePO4
- 50
120
60A cont.
100A 30s
P: yes
S: up to 2
29 lbs; 13.2 kg
Dakota Lithium 24V50Ah Deep Cycle
LiFePO4
31 52.5
126
52.5A cont.
100A 10s
? 31.9 lbs; 14.5 kg
ExpertPower EP2450 Deep Cycle
LiFePO4
31 50
120
50A cont.
55A 10s
? 31 lbs; 14.1 kg
ExpertPower EP24100 Deep Cycle
LiFePO4
4D (6D) 100
240
95A cont.
150A 3s
? 47.9 lbs; 21.7 kg
GreenLiFE GL24V50 Deep Cycle
LiFePO4
31 50
120
- ? 32 lbs; 14.5 kg
GreenLiFE GL24V60 Deep Cycle
LiFePO4
31 60
144
- ? 32 lbs; 14.5 kg
Fly Power 24V40Ah Deep Cycle
LiFePO4
24 40
96
40A cont.
80A 3-5s
Yes -
Fly Power 24V60Ah Deep Cycle
LiFePO4
31 60
144
60A cont.
120A 3-5s
Yes -
Fly Power 24V80Ah Deep Cycle
LiFePO4
4D (6D) 80
192
80A cont.
160A 3-5s
Yes -
Fly Power 24V100Ah Deep Cycle
LiFePO4
4D (6D) 100
240
100A cont.
200A 3-5s
Yes -
Fly Power 24V120Ah Deep Cycle
LiFePO4
4D (6D) 120
288
120A cont.
240A 3-5s
Yes -
Fly Power 24V160Ah Deep Cycle
LiFePO4
4D (6D) 160
384
160A cont.
320A 3-5s
Yes -
Ionic 24V50Ah Deep Cycle
LiFePO4
31 50
120
50A cont.
170A 3s
P: yes
S: up to 4
27.9 lbs; 12.7 kg
Kepworth 24V200Ah Deep Cycle
LiFePO4
- 200
480
160-200A cont. P:?
S: up to 2
81.4 lbs; 36.9 kg
MoseWorth 24V40Ah Deep Cycle
LiFePO4
24 40
96
- ? 20.9 lbs; 9.5 kg
MoseWorth 24V60Ah Deep Cycle
LiFePO4
31 60
144
- ? 30.8 lbs; 14.0 kg
MoseWorth 24V80Ah Deep Cycle
LiFePO4
4D (6D) 80
192
- ? ?
MoseWorth 24V160Ah Deep Cycle
LiFePO4
4D (6D)  160
384
- ? 77 lbs; 34.9 kg
Scream Power 24V200Ah Deep Cycle
LiFePO4
- 200
480
- ? -
VMAXTANKS LFP27-2455 Deep Cycle
LiFePO4
27 55
132
55A cont.
75A 3s
P: up to 4
S: up to 2
25 lbs; 11.3 kg
Waterblade LFP 50-25.6 Deep Cycle
LiFePO4
- 50
120
80A cont.
200A 3s
P: up to 10
S: up to 8
29 lbs; 13.2 kg

Note: Amazon affiliate links ('Model' column) open in the new windows, feel free to check them for the most up-to-date prices and offers. Also, we have tried to verify every single bit of information in this chart, but things may change over time, especially with the introduction of new battery (sub)models.

While 12V lithium batteries feature four (4) cells connected in series to achieve 12.8 volts voltage (4 x 3.2V = 12.8V), 24V lithium batteries feature eight (8) cells connected in series in order to achieve 25.6 volts (8 x 3.2V =25.6V).

So, people requiring 24V lithium batteries should either connect two (2) 12V lithium batteries in series or get a single 24V lithium battery and enjoy all the privileges of the increased voltage (lower current, increased energy efficiency, etc.).

And if larger 24V battery packs are required, connecting several 24V batteries in parallel means fewer connections than making such/similar battery pack using 12V lithium batteries.

36V Marine, Car, and Industrial Lithium Batteries

The most popular 36V marine, car, and industrial heavy-duty lithium batteries are given in the following chart:

Model Battery Type
Cell Type
Group Size Capacity (Ah)
RC (min)
Discharge
Currents
Parallel Conn.
Series Conn.
Weight (lbs/kg)
Dakota Lithium 36V63Ah Deep Cycle
LiFePO4
4D/6D 63
~150
60A cont.
100A 10s
? 59 lbs; 26.8 kg
Fly Power 36V40Ah Deep Cycle
LiFePO4
95R 40
96
40A cont.
80A 3-5s
Yes -
Fly Power 36V60Ah Deep Cycle
LiFePO4
4D/6D 60
144
60A cont.
120A 3-5s
Yes -
Fly Power 36V80Ah Deep Cycle
LiFePO4
4D/6D 80
192
80A cont.
160A 3-5s
Yes -
Fly Power 36V100Ah Deep Cycle
LiFePO4
4D/6D 100
240
100A cont.
200A 3-5s
Yes -
Fly Power 36V120Ah Deep Cycle
LiFePO4
- 120
288
120A cont.
240A 3-5s
Yes -
GreenLiFE GL36V40 Deep Cycle
LiFePO4
31 40
96
50A cont. Yes 31.3 lbs; 14.2 kg
Kepworth 36V40Ah Deep Cycle
LiFePO4
95R 40
96
32-40A cont. P:?
S: up to 2
35.2 lbs; 16.0 kg
Kepworth 36V60Ah Deep Cycle
LiFePO4
4D/6D 60
144
48-60A cont. P:?
S: up to 2
46.2 lbs; 20.9 kg
Kepworth 36V80Ah Deep Cycle
LiFePO4
4D/6D 80
192
 64-80A cont. P:?
S: up to 2
56.5 lbs; 25.6 kg
Kepworth 36V100Ah Deep Cycle
LiFePO4
4D/6D 100
240
 80-100A cont. P:?
S: up to 2
69.7 lbs; 31.6 kg
Kepworth 36V120Ah Deep Cycle
LiFePO4
4D/6D 120
288
 96-120A cont. P:?
S: up to 2
82.9 lbs; 37.6 kg
MoseWorth 36V100Ah Deep Cycle
LiFePO4
4D/6D 100
240
- Not recommended ?
Scream Power 36V40Ah Deep Cycle
LiFePO4
95R 40
96
40A cont.
80A surge (s?)
? 28.7 lbs; 13 kg
Scream Power 36V80Ah Deep Cycle
LiFePO4
4D/6D 80
192
80A cont.
160A surge (s?)
? 57.2 lbs; 25.9 kg
Scream Power 36V100Ah Deep Cycle
LiFePO4
4D/6D 100
240
 100A cont.
200A surge (s?)
? 70.5 lbs; 31.94 kg
Scream Power 36V120Ah Deep Cycle
LiFePO4
- 120
288
120A cont.
240A surge (s?)
? 83.8 lbs; 39.96 kg

Note: Amazon affiliate links ('Model' column) open in the new windows, feel free to check them for the most up-to-date prices and offers. Also, we have tried to verify every single bit of information in this chart, but things may change over time, especially with the introduction of new battery (sub)models.

36-volt lithium batteries are very often used to power 36V trolling motors, 36V golf carts and are often used as house RV batteries, in off-the-grid systems, and similar.

The output voltage of 36V can be achieved by connecting three (3) 12V lithium batteries in series, or by using a single 36V lithium battery.

Unless some special 36V lithium battery pack is needed, using 36V lithium batteries connected in parallel (instead of building the battery pack using 12V batteries) is recommended.

Note: again, lithium batteries should be connected in series/parallel ONLY as recommended by their manufacturer, or their BMSs may detect false positive unwanted events, or they can be even destroyed by not recognizing the true positive unwanted events!

48V Marine, Car, and Industrial Lithium Batteries

The most popular 48V marine, car, and industrial heavy-duty lithium batteries are given in the following chart:

Model Battery Type
Cell Type
Group Size Capacity (Ah)
RC (min)
Discharge
Currents
Parallel Conn.
Series Conn.
Weight
Ampere Time 48V100Ah Deep Cycle
LiFePO4
- 100
240
100A cont.
280A 5s
Not supported 99.2 lbs; 44.9 kg
Fly Power 48V100Ah Deep Cycle
LiFePO4
- 100
240
100A cont.
200A 3-5s
Yes -
Go Battery 48V100Ah Deep Cycle
LiFePO4
- 100
240
120A cont.
300A surge (s?)
P: yes
S:?
91 lbs; 41.2 kg
GreenLiFE GL48V25 Deep Cycle
LiFePO4
31 25
60
40A cont. Yes 27.3 lbs; 12.4 kg
Kepworth 48V100Ah Deep Cycle
LiFePO4
- 100
240
80-100A cont. P:?
S: up to 2
81.4 lbs; 36.9 lbs
Lynx 48V100Ah Deep Cycle
LiFePO4
- 100
240
200A cont. Yes 89 lbs; 40.3 kg
Lynx 48V200Ah Deep Cycle
LiFePO4
- 200
480
400A cont. Yes 150 lbs; 68 kg
MoseWorth 48V100Ah Deep Cycle
LiFePO4
- 100
240
100A cont.
200A surge (s?)
Yes 81.4 lbs; 36.9 lbs
RELiON 48V30Ah Deep Cycle
LiFePO4
GC2 30
72
100A cont.
200A 15s
P: yes
S:?
34.4 lbs; 15.6 kg
Renogy 48V50Ah Deep Cycle
LiFePO4
- 50
120
50A cont. P: yes
S: no
60.8 lbs; 27.6 kg
Scream Power 48V80Ah Deep Cycle
LiFePO4
4D (6D) 80
192
80A cont. ? 77 lbs; 34.9 kg
Scream Power 48V100Ah Deep Cycle
LiFePO4
- 100
240
100A cont. ? 94.7 lbs; 42.9 kg

Note: Amazon affiliate links ('Model' column) open in the new windows, feel free to check them for the most up-to-date prices and offers. Also, we have tried to verify every single bit of information in this chart, but things may change over time, especially with the introduction of new battery (sub)models.

48V lithium batteries are becoming more and more popular, especially for golf carts and other mid-range power vehicles.

48V battery pack can be achieved by connecting in series:

- four (4) 12V lithium batteries,

- two (2) 24V lithium batteries,

- or by using a single 48V lithium battery.

48V voltage offers many advantages over other voltages due to the decreased current (for the same output power) and increased efficiency.

For example, in order to power a 4000W (4kW) power inverter that features 83.3% efficiency, the battery pack must be able to provide 4800W (4.8 kw) of electric power. Depending on the voltages, that means that the battery pack must be able to provide:

- 12V: 400 Amps,

- 24V: 200 Amps,

- 36V: 133.3 Amps,

- 48V: 100 Amps.

By decreasing the current from 400 Amps to 100 Amps, wiring may be thinner and easier to work with. And if the same wiring is used, energy efficiency increases significantly.

That is why some high-power tools, golf carts, even electric motorcycles use 56V, 72V, 96V, or even higher voltages.

Of course, the higher the voltage, the more dangerous it becomes!


Long Story Short: Lithium starting, dual-purpose and deep cycle batteries are becoming more and more popular thanks to their lower weight, low-self discharge rate, a high number of charging/discharging cycles, spill-proof and maintenance-free design, etc.

Initially, lithium batteries tend to be more expensive, but in the long run, they actually save money.

Just be sure to charge and to connect the lithium batteries in series/parallel only according to their manufacturers' recommendations.



Recommend This Page

Search Deep Cycle Marine Battery


Go to Top