Our 12V 100Ah battery supports max. 1280W load power and max. 100A continuous charge/discharge current, and the battery is the storage battery instead of the start-up battery.

Generally, we do not recommend using our battery for any application that need to be started. Because the golf cart generates a high current when starting, going uphill, or accelerating, the BMS board is activated for protection; over time, the BMS will be damaged, resulting in the degradation or even destruction of the battery system performance.

You could connect 8 batteries as 2 in parallel and 4 in series to build a 48V (51.2V) 200Ah battery system.

And if you need to add another four batteries to build a 48V (51.2V) 300Ah, we suggest you finish it within one month.

Our 12V 100Ah battery could support max.100A charging/discharging current and max.280A discharging current 5 seconds.


If the power of your engine less than 3584W, this battery could be used to power your engine for emergency usage. And we do not recommend use the battery as the starting battery in long term use.

According to the info you provide us, we recommend you purchase our 12V 200Ah Plus battery for your RV house, our 12V 200Ah Plus battery could support max.2560W load power and max.200A charging/discharging current.

Each of our 12V 100Ah battery supports max. 1280W load power and max. 100A continuous charge/discharge current.
We recommend solar panel greater than or equals to 300W (fully charges with effective sunshine 4.5h/day).

Our battery can be used well below 0C (can be normally discharged), but we don’t suggest charging the battery below 0C.

It is like most kinds of the battery in the market now:

Operating Temperature: Charge: 0°C--50°C; Discharge: -20°C--60°C.

Currently our battery can be charged at low temperature, but it is charged with a very small charging current. And we’ve used auto motive grade battery cells which have superior quality. Even if charging in low temperature environment, it will not damage the battery.

The BMS in our battery has low temperature cut-off protection function, but if we set this function on our battery, the battery can neither be charged nor discharged under 32F/0C. At the beginning, we had set up the low temperature cut-off function for our battery, but later many customers responded that they needed to be able to discharge it under 32F/0C. After careful research, our team has decided to block this function.

Many customers live in cold area, they are happy to use our battery, since it can be discharged very well, and their load can work under low temperature. If they need to charge the battery, they will take it inside the home (where the temperature above 0C).

Our battery is waterproof , and the IP level is IP65.

This IP grade indicates that the product will not enter water when you put it in outside at rainy day. Normal rain, the water will not affect the product;

But the battery terminal should not contact with water during use, otherwise it may cause short circuit of the battery.

Here're two main reasons for why we don't suggest connect batteries with different capacity:
 
1. After parallel connection of batteries with different capacities, the current of 100ah is twice as large as that of 50Ah when charging/discharging at the same time.

2. The internal resistance of 200ah battery is 2-4m Ω, and that of 100Ah battery is 7-9m Ω. When the batteries with different impedances are connected in parallel, it is possible to damage BMS after long-term use.

We’re really sorry for the confusion and the misunderstanding.

Our battery can be used well below 0C (can be normally discharged), but we don’t suggest charging the battery below 0C.

It is like most kinds of the battery in the market now: Operating Temperature: Charge: 0°C--50°C; Discharge: -20°C--60°C.
However, charging the battery at freezing temperatures is not recommended for the following reasons:

Low-temperature charging of batteries may result in the formation of lithium dendrites in the negative electrode. Dendrites of lithium continue to grow with the cycle of lithium-ion batteries, eventually penetrating the diaphragm and causing positive and negative short circuits.

Would you mind considering our self-heating battery models if you need to charge the battery at a freezing temperature? It has been released for battery charging at low temperatures and allows for battery discharge/charge at -20°C.
 
If you have any further questions, please see the product link below:

12V100Ah self-heating battery:
https://amperetime.com/products/ampere-time-12v-100ah-lithium-battery-with-self-heating-low-temperature-charging-20-c

 12V200Ah self-heating battery:
 https://amperetime.com/collections/ampere-time-12v-lithium-lifepo4-battery-series/products/ampere-time-12v-200ah-lithium-battery-with-self-heating-low-temperature-charging-20-c

1.Our battery is the storage battery instead of the start-up battery. Generally, we do not recommend using our battery for any application that need to be started. Because the golf cart generates a high current when starting, going uphill, or accelerating, the BMS board is activated for protection; over time, the BMS will be damaged, resulting in the degradation or even destruction of the battery system performance.

 2. We don't provide a charger adapter with the battery. And we recommend battery charger that support lithium battery charging. And to fully charge the battery, the DC charging voltage should be between 14.2V~14.6V, and charging current less than 100A (for 12V 100Ah battery).

3.We provide five-year warranty for all our batteries. And our five-year battery warranty includes the following privileges when used correctly in accordance with the manual instructions:  

①We’ll assist to analyze customer’s problem within 24 hours, and help solve problem, restore battery usage, and introduce the optimal use method;

 ②If the problem can’t be solved, we’ll send new battery replacement to the defective battery. And the defective battery needs to be returned to our US warehouse, and will be checked and tested by our technical team.

Our 12V100Ah battery is recommended for trolling motors with 30-70lb thrust. To help you analyze and solve your question about the trolling motors more specifically, we welcome you to contact us (service@amperetime.com)directly, and we will help you with an in-depth analysis according to your detailed information.

Our 12V batteries support up to 4 in series or / and 4 in parallel, which means that it could support up to 16 batteries in connection as 4 in series and 4 in parallel.

If you use 4 of batteries would be totally fine to be connected as 4 in series as a 48V (51.2V) 100Ah battery system.

Our 12V100Ah battery is recommended for trolling motors with 30-70lb thrust. To help you analyze and solve your question about the trolling motors more specifically, we welcome you to contact us (service@amperetime.com)directly, and we will help you with an in-depth analysis according to your detailed information.

Our battery can be used well below 0C (can be normally discharged), but we don’t suggest charging the battery below 0C.

It is like most kinds of the battery in the market now:<br> Operating Temperature: Charge: 0°C--50°C; Discharge: -20°C--60°C.

Currently our battery can be charged at low temperature, but it is charged with a very small charging current. And we’ve used auto motive grade battery cells which have superior quality. Even if charging in low temperature environment, it will not damage the battery.